ID

VAR-201505-0338

CVE

CVE-2014-8147

TITLE

ICU Project ICU4C library contains multiple overflow vulnerabilities

DESCRIPTION

The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 uses an integer data type that is inconsistent with a header file, which allows remote attackers to cause a denial of service (incorrect malloc followed by invalid free) or possibly execute arbitrary code via crafted text. ICU Project ICU4C library, versions 52 through 54, contains a heap-based buffer overflow and an integer overflow. ICU4C library is prone to multiple buffer-overflow vulnerabilities because it fails to properly bounds-check user-supplied data before copying it into an insufficiently sized buffer. An attacker can exploit these issues to execute arbitrary code in the context of the affected application. Failed exploit attempts may crash the application, denying service to legitimate users. ============================================================================ Ubuntu Security Notice USN-2605-1 May 11, 2015 icu vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 15.04 - Ubuntu 14.10 - Ubuntu 14.04 LTS Summary: ICU could be made to crash or run programs as your login if it processed specially crafted data. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 15.04: libicu52 52.1-8ubuntu0.1 Ubuntu 14.10: libicu52 52.1-6ubuntu0.3 Ubuntu 14.04 LTS: libicu52 52.1-3ubuntu0.3 In general, a standard system update will make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3323-1 security@debian.org https://www.debian.org/security/ Laszlo Boszormenyi August 01, 2015 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : icu CVE ID : CVE-2014-6585 CVE-2014-8146 CVE-2014-8147 CVE-2015-4760 Debian Bug : 778511 784773 Several vulnerabilities were discovered in the International Components for Unicode (ICU) library. CVE-2015-4760 The Layout Engine was missing multiple boundary checks. These could lead to buffer overflows and memory corruption. Additionally, it was discovered that the patch applied to ICU in DSA-3187-1 for CVE-2014-6585 was incomplete, possibly leading to an invalid memory access. This could allow remote attackers to disclose portion of private memory via crafted font files. For the oldstable distribution (wheezy), these problems have been fixed in version 4.8.1.1-12+deb7u3. For the stable distribution (jessie), these problems have been fixed in version 52.1-8+deb8u2. For the testing distribution (stretch), these problems have been fixed in version 52.1-10. For the unstable distribution (sid), these problems have been fixed in version 52.1-10. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2015-09-30-3 OS X El Capitan 10.11 OS X El Capitan 10.11 is now available and addresses the following: Address Book Available for: Mac OS X v10.6.8 and later Impact: A local attacker may be able to inject arbitrary code to processes loading the Address Book framework Description: An issue existed in Address Book framework's handling of an environment variable. This issue was addressed through improved environment variable handling. CVE-ID CVE-2015-5897 : Dan Bastone of Gotham Digital Science AirScan Available for: Mac OS X v10.6.8 and later Impact: An attacker with a privileged network position may be able to extract payload from eSCL packets sent over a secure connection Description: An issue existed in the processing of eSCL packets. This issue was addressed through improved validation checks. CVE-ID CVE-2015-5853 : an anonymous researcher apache_mod_php Available for: Mac OS X v10.6.8 and later Impact: Multiple vulnerabilities in PHP Description: Multiple vulnerabilities existed in PHP versions prior to 5.5.27, including one which may have led to remote code execution. This issue was addressed by updating PHP to version 5.5.27. CVE-ID CVE-2014-9425 CVE-2014-9427 CVE-2014-9652 CVE-2014-9705 CVE-2014-9709 CVE-2015-0231 CVE-2015-0232 CVE-2015-0235 CVE-2015-0273 CVE-2015-1351 CVE-2015-1352 CVE-2015-2301 CVE-2015-2305 CVE-2015-2331 CVE-2015-2348 CVE-2015-2783 CVE-2015-2787 CVE-2015-3329 CVE-2015-3330 Apple Online Store Kit Available for: Mac OS X v10.6.8 and later Impact: A malicious application may gain access to a user's keychain items Description: An issue existed in validation of access control lists for iCloud keychain items. This issue was addressed through improved access control list checks. CVE-ID CVE-2015-5836 : XiaoFeng Wang of Indiana University, Luyi Xing of Indiana University, Tongxin Li of Peking University, Tongxin Li of Peking University, Xiaolong Bai of Tsinghua University AppleEvents Available for: Mac OS X v10.6.8 and later Impact: A user connected through screen sharing can send Apple Events to a local user's session Description: An issue existed with Apple Event filtering that allowed some users to send events to other users. This was addressed by improved Apple Event handling. CVE-ID CVE-2015-5849 : Jack Lawrence (@_jackhl) Audio Available for: Mac OS X v10.6.8 and later Impact: Playing a malicious audio file may lead to an unexpected application termination Description: A memory corruption issue existed in the handling of audio files. This issue issue was addressed through improved memory handling. CVE-ID CVE-2015-5862 : YoungJin Yoon of Information Security Lab. (Adv.: Prof. Taekyoung Kwon), Yonsei University, Seoul, Korea bash Available for: Mac OS X v10.6.8 and later Impact: Multiple vulnerabilities in bash Description: Multiple vulnerabilities existed in bash versions prior to 3.2 patch level 57. These issues were addressed by updating bash version 3.2 to patch level 57. CVE-ID CVE-2014-6277 CVE-2014-7186 CVE-2014-7187 Certificate Trust Policy Available for: Mac OS X v10.6.8 and later Impact: Update to the certificate trust policy Description: The certificate trust policy was updated. The complete list of certificates may be viewed at https://support.apple.com/en- us/HT202858. CFNetwork Cookies Available for: Mac OS X v10.6.8 and later Impact: An attacker in a privileged network position can track a user's activity Description: A cross-domain cookie issue existed in the handling of top level domains. The issue was address through improved restrictions of cookie creation. CVE-ID CVE-2015-5885 : Xiaofeng Zheng of Blue Lotus Team, Tsinghua University CFNetwork FTPProtocol Available for: Mac OS X v10.6.8 and later Impact: Malicious FTP servers may be able to cause the client to perform reconnaissance on other hosts Description: An issue existed in the handling of FTP packets when using the PASV command. This issue was resolved through improved validation. CVE-ID CVE-2015-5912 : Amit Klein CFNetwork HTTPProtocol Available for: Mac OS X v10.6.8 and later Impact: A maliciously crafted URL may be able to bypass HSTS and leak sensitive data Description: A URL parsing vulnerability existed in HSTS handling. This issue was addressed through improved URL parsing. CVE-ID CVE-2015-5858 : Xiaofeng Zheng of Blue Lotus Team, Tsinghua University CFNetwork HTTPProtocol Available for: Mac OS X v10.6.8 and later Impact: A malicious website may be able to track users in Safari private browsing mode Description: An issue existed in the handling of HSTS state in Safari private browsing mode. This issue was addressed through improved state handling. CVE-ID CVE-2015-5860 : Sam Greenhalgh of RadicalResearch Ltd CFNetwork Proxies Available for: Mac OS X v10.6.8 and later Impact: Connecting to a malicious web proxy may set malicious cookies for a website Description: An issue existed in the handling of proxy connect responses. This issue was addressed by removing the set-cookie header while parsing the connect response. CVE-ID CVE-2015-5841 : Xiaofeng Zheng of Blue Lotus Team, Tsinghua University CFNetwork SSL Available for: Mac OS X v10.6.8 and later Impact: An attacker with a privileged network position may intercept SSL/TLS connections Description: A certificate validation issue existed in NSURL when a certificate changed. This issue was addressed through improved certificate validation. CVE-ID CVE-2015-5824 : Timothy J. Wood of The Omni Group CFNetwork SSL Available for: Mac OS X v10.6.8 and later Impact: An attacker may be able to decrypt data protected by SSL Description: There are known attacks on the confidentiality of RC4. An attacker could force the use of RC4, even if the server preferred better ciphers, by blocking TLS 1.0 and higher connections until CFNetwork tried SSL 3.0, which only allows RC4. This issue was addressed by removing the fallback to SSL 3.0. CoreCrypto Available for: Mac OS X v10.6.8 and later Impact: An attacker may be able to determine a private key Description: By observing many signing or decryption attempts, an attacker may have been able to determine the RSA private key. This issue was addressed using improved encryption algorithms. CoreText Available for: Mac OS X v10.6.8 and later Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: A memory corruption issue existed in the processing of font files. This issue was addressed through improved input validation. CVE-ID CVE-2015-5874 : John Villamil (@day6reak), Yahoo Pentest Team Dev Tools Available for: Mac OS X v10.6.8 and later Impact: A malicious application may be able to execute arbitrary code with system privileges Description: A memory corruption issue existed in dyld. This was addressed through improved memory handling. CVE-ID CVE-2015-5876 : beist of grayhash Dev Tools Available for: Mac OS X v10.6.8 and later Impact: An application may be able to bypass code signing Description: An issue existed with validation of the code signature of executables. This issue was addressed through improved bounds checking. CVE-ID CVE-2015-5839 : @PanguTeam Disk Images Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to execute arbitrary code with system privileges Description: A memory corruption issue existed in DiskImages. This issue was addressed through improved memory handling. CVE-ID CVE-2015-5847 : Filippo Bigarella, Luca Todesco dyld Available for: Mac OS X v10.6.8 and later Impact: An application may be able to bypass code signing Description: An issue existed with validation of the code signature of executables. This issue was addressed through improved bounds checking. CVE-ID CVE-2015-5839 : TaiG Jailbreak Team EFI Available for: Mac OS X v10.6.8 and later Impact: A malicious application can prevent some systems from booting Description: An issue existed with the addresses covered by the protected range register. This issue was fixed by changing the protected range. CVE-ID CVE-2015-5900 : Xeno Kovah & Corey Kallenberg from LegbaCore EFI Available for: Mac OS X v10.6.8 and later Impact: A malicious Apple Ethernet Thunderbolt adapter may be able to affect firmware flashing Description: Apple Ethernet Thunderbolt adapters could modify the host firmware if connected during an EFI update. This issue was addressed by not loading option ROMs during updates. CVE-ID CVE-2015-5914 : Trammell Hudson of Two Sigma Investments and snare Finder Available for: Mac OS X v10.6.8 and later Impact: The "Secure Empty Trash" feature may not securely delete files placed in the Trash Description: An issue existed in guaranteeing secure deletion of Trash files on some systems, such as those with flash storage. This issue was addressed by removing the "Secure Empty Trash" option. CVE-ID CVE-2015-5901 : Apple Game Center Available for: Mac OS X v10.6.8 and later Impact: A malicious Game Center application may be able to access a player's email address Description: An issue existed in Game Center in the handling of a player's email. This issue was addressed through improved access restrictions. CVE-ID CVE-2015-5855 : Nasser Alnasser Heimdal Available for: Mac OS X v10.6.8 and later Impact: An attacker may be able to replay Kerberos credentials to the SMB server Description: An authentication issue existed in Kerberos credentials. This issue was addressed through additional validation of credentials using a list of recently seen credentials. CVE-ID CVE-2015-5913 : Tarun Chopra of Microsoft Corporation, U.S. and Yu Fan of Microsoft Corporation, China ICU Available for: Mac OS X v10.6.8 and later Impact: Multiple vulnerabilities in ICU Description: Multiple vulnerabilities existed in ICU versions prior to 53.1.0. These issues were addressed by updating ICU to version 55.1. CVE-ID CVE-2014-8146 CVE-2014-8147 CVE-2015-5922 Install Framework Legacy Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to gain root privileges Description: A restriction issue existed in the Install private framework containing a privileged executable. This issue was addressed by removing the executable. CVE-ID CVE-2015-5888 : Apple Intel Graphics Driver Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to execute arbitrary code with system privileges Description: Multiple memory corruption issues existed in the Intel Graphics Driver. These issues were addressed through improved memory handling. CVE-ID CVE-2015-5830 : Yuki MIZUNO (@mzyy94) CVE-2015-5877 : Camillus Gerard Cai IOAudioFamily Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to determine kernel memory layout Description: An issue existed in IOAudioFamily that led to the disclosure of kernel memory content. This issue was addressed by permuting kernel pointers. CVE-ID CVE-2015-5864 : Luca Todesco IOGraphics Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to execute arbitrary code with kernel privileges Description: Multiple memory corruption issues existed in the kernel. These issues were addressed through improved memory handling. CVE-ID CVE-2015-5871 : Ilja van Sprundel of IOActive CVE-2015-5872 : Ilja van Sprundel of IOActive CVE-2015-5873 : Ilja van Sprundel of IOActive CVE-2015-5890 : Ilja van Sprundel of IOActive IOGraphics Available for: Mac OS X v10.6.8 and later Impact: A malicious application may be able to determine kernel memory layout Description: An issue existed in IOGraphics which could have led to the disclosure of kernel memory layout. This issue was addressed through improved memory management. CVE-ID CVE-2015-5865 : Luca Todesco IOHIDFamily Available for: Mac OS X v10.6.8 and later Impact: A malicious application may be able to execute arbitrary code with system privileges Description: Multiple memory corruption issues existed in IOHIDFamily. These issues were addressed through improved memory handling. CVE-ID CVE-2015-5866 : Apple CVE-2015-5867 : moony li of Trend Micro IOStorageFamily Available for: Mac OS X v10.6.8 and later Impact: A local attacker may be able to read kernel memory Description: A memory initialization issue existed in the kernel. This issue was addressed through improved memory handling. CVE-ID CVE-2015-5863 : Ilja van Sprundel of IOActive Kernel Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to execute arbitrary code with kernel privileges Description: Multiple memory corruption issues existed in the Kernel. These issues were addressed through improved memory handling. CVE-ID CVE-2015-5868 : Cererdlong of Alibaba Mobile Security Team CVE-2015-5896 : Maxime Villard of m00nbsd CVE-2015-5903 : CESG Kernel Available for: Mac OS X v10.6.8 and later Impact: A local process can modify other processes without entitlement checks Description: An issue existed where root processes using the processor_set_tasks API were allowed to retrieve the task ports of other processes. This issue was addressed through additional entitlement checks. CVE-ID CVE-2015-5882 : Pedro Vilaca, working from original research by Ming-chieh Pan and Sung-ting Tsai; Jonathan Levin Kernel Available for: Mac OS X v10.6.8 and later Impact: A local attacker may control the value of stack cookies Description: Multiple weaknesses existed in the generation of user space stack cookies. These issues were addressed through improved generation of stack cookies. CVE-ID CVE-2013-3951 : Stefan Esser Kernel Available for: Mac OS X v10.6.8 and later Impact: An attacker may be able to launch denial of service attacks on targeted TCP connections without knowing the correct sequence number Description: An issue existed in xnu's validation of TCP packet headers. This issue was addressed through improved TCP packet header validation. CVE-ID CVE-2015-5879 : Jonathan Looney Kernel Available for: Mac OS X v10.6.8 and later Impact: An attacker in a local LAN segment may disable IPv6 routing Description: An insufficient validation issue existed in the handling of IPv6 router advertisements that allowed an attacker to set the hop limit to an arbitrary value. This issue was addressed by enforcing a minimum hop limit. CVE-ID CVE-2015-5869 : Dennis Spindel Ljungmark Kernel Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to determine kernel memory layout Description: An issue existed that led to the disclosure of kernel memory layout. This was addressed through improved initialization of kernel memory structures. CVE-ID CVE-2015-5842 : beist of grayhash Kernel Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to determine kernel memory layout Description: An issue existed in debugging interfaces that led to the disclosure of memory content. This issue was addressed by sanitizing output from debugging interfaces. CVE-ID CVE-2015-5870 : Apple Kernel Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to cause a system denial of service Description: A state management issue existed in debugging functionality. This issue was addressed through improved validation. CVE-ID CVE-2015-5902 : Sergi Alvarez (pancake) of NowSecure Research Team libc Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue existed in the kernel. This issue was addressed through improved memory handling. CVE-ID CVE-2014-8611 : Adrian Chadd and Alfred Perlstein of Norse Corporation libpthread Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue existed in the kernel. This issue was addressed through improved memory handling. CVE-ID CVE-2015-5899 : Lufeng Li of Qihoo 360 Vulcan Team libxpc Available for: Mac OS X v10.6.8 and later Impact: Many SSH connections could cause a denial of service Description: launchd had no limit on the number of processes that could be started by a network connection. This issue was addressed by limiting the number of SSH processes to 40. CVE-ID CVE-2015-5881 : Apple Login Window Available for: Mac OS X v10.6.8 and later Impact: The screen lock may not engage after the specified time period Description: An issue existed with captured display locking. The issue was addressed through improved lock handling. CVE-ID CVE-2015-5833 : Carlos Moreira, Rainer Dorau of rainer dorau informationsdesign, Chris Nehren, Kai Takac, Hans Douma, Toni Vaahtera, and an anonymous researcher lukemftpd Available for: Mac OS X v10.6.8 and later Impact: A remote attacker may be able to deny service to the FTP server Description: A glob-processing issue existed in tnftpd. This issue was addressed through improved glob validation. CVE-ID CVE-2015-5917 : Maksymilian Arciemowicz of cxsecurity.com Mail Available for: Mac OS X v10.6.8 and later Impact: Printing an email may leak sensitive user information Description: An issue existed in Mail which bypassed user preferences when printing an email. This issue was addressed through improved user preference enforcement. CVE-ID CVE-2015-5881 : Owen DeLong of Akamai Technologies, Noritaka Kamiya, Dennis Klein from Eschenburg, Germany, Jeff Hammett of Systim Technology Partners Mail Available for: Mac OS X v10.6.8 and later Impact: An attacker in a privileged network position may be able to intercept attachments of S/MIME-encrypted e-mail sent via Mail Drop Description: An issue existed in handling encryption parameters for large email attachments sent via Mail Drop. The issue is addressed by no longer offering Mail Drop when sending an encrypted e-mail. CVE-ID CVE-2015-5884 : John McCombs of Integrated Mapping Ltd Multipeer Connectivity Available for: Mac OS X v10.6.8 and later Impact: A local attacker may be able to observe unprotected multipeer data Description: An issue existed in convenience initializer handling in which encryption could be actively downgraded to a non-encrypted session. This issue was addressed by changing the convenience initializer to require encryption. CVE-ID CVE-2015-5851 : Alban Diquet (@nabla_c0d3) of Data Theorem NetworkExtension Available for: Mac OS X v10.6.8 and later Impact: A malicious application may be able to determine kernel memory layout Description: An uninitialized memory issue in the kernel led to the disclosure of kernel memory content. This issue was addressed through improved memory initialization. CVE-ID CVE-2015-5831 : Maxime Villard of m00nbsd Notes Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to leak sensitive user information Description: An issue existed in parsing links in the Notes application. This issue was addressed through improved input validation. CVE-ID CVE-2015-5878 : Craig Young of Tripwire VERT, an anonymous researcher Notes Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to leak sensitive user information Description: A cross-site scripting issue existed in parsing text by the Notes application. This issue was addressed through improved input validation. CVE-ID CVE-2015-5875 : xisigr of Tencent's Xuanwu LAB (www.tencent.com) OpenSSH Available for: Mac OS X v10.6.8 and later Impact: Multiple vulnerabilities in OpenSSH Description: Multiple vulnerabilities existed in OpenSSH versions prior to 6.9. These issues were addressed by updating OpenSSH to version 6.9. CVE-ID CVE-2014-2532 OpenSSL Available for: Mac OS X v10.6.8 and later Impact: Multiple vulnerabilities in OpenSSL Description: Multiple vulnerabilities existed in OpenSSL versions prior to 0.9.8zg. These were addressed by updating OpenSSL to version 0.9.8zg. CVE-ID CVE-2015-0286 CVE-2015-0287 procmail Available for: Mac OS X v10.6.8 and later Impact: Multiple vulnerabilities in procmail Description: Multiple vulnerabilities existed in procmail versions prior to 3.22. These issues were addressed by removing procmail. CVE-ID CVE-2014-3618 remote_cmds Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to execute arbitrary code with root privileges Description: An issue existed in the usage of environment variables by the rsh binary. This issue was addressed by dropping setuid privileges from the rsh binary. CVE-ID CVE-2015-5889 : Philip Pettersson removefile Available for: Mac OS X v10.6.8 and later Impact: Processing malicious data may lead to unexpected application termination Description: An overflow fault existed in the checkint division routines. This issue was addressed with improved division routines. CVE-ID CVE-2015-5840 : an anonymous researcher Ruby Available for: Mac OS X v10.6.8 and later Impact: Multiple vulnerabilities in Ruby Description: Multiple vulnerabilities existed in Ruby versions prior to 2.0.0p645. These were addressed by updating Ruby to version 2.0.0p645. CVE-ID CVE-2014-8080 CVE-2014-8090 CVE-2015-1855 Security Available for: Mac OS X v10.6.8 and later Impact: The lock state of the keychain may be incorrectly displayed to the user Description: A state management issue existed in the way keychain lock status was tracked. This issue was addressed through improved state management. CVE-ID CVE-2015-5915 : Peter Walz of University of Minnesota, David Ephron, Eric E. Lawrence, Apple Security Available for: Mac OS X v10.6.8 and later Impact: A trust evaluation configured to require revocation checking may succeed even if revocation checking fails Description: The kSecRevocationRequirePositiveResponse flag was specified but not implemented. This issue was addressed by implementing the flag. CVE-ID CVE-2015-5894 : Hannes Oud of kWallet GmbH Security Available for: Mac OS X v10.6.8 and later Impact: A remote server may prompt for a certificate before identifying itself Description: Secure Transport accepted the CertificateRequest message before the ServerKeyExchange message. This issue was addressed by requiring the ServerKeyExchange first. CVE-ID CVE-2015-5887 : Benjamin Beurdouche, Karthikeyan Bhargavan, Antoine Delignat-Lavaud, Alfredo Pironti, and Jean Karim Zinzindohoue of INRIA Paris-Rocquencourt, and Cedric Fournet and Markulf Kohlweiss of Microsoft Research, Pierre-Yves Strub of IMDEA Software Institute SMB Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue existed in the kernel. This issue was addressed through improved memory handling. CVE-ID CVE-2015-5891 : Ilja van Sprundel of IOActive SMB Available for: Mac OS X v10.6.8 and later Impact: A local user may be able to determine kernel memory layout Description: An issue existed in SMBClient that led to the disclosure of kernel memory content. This issue was addressed through improved bounds checking. CVE-ID CVE-2015-5893 : Ilja van Sprundel of IOActive SQLite Available for: Mac OS X v10.6.8 and later Impact: Multiple vulnerabilities in SQLite v3.8.5 Description: Multiple vulnerabilities existed in SQLite v3.8.5. These issues were addressed by updating SQLite to version 3.8.10.2. CVE-ID CVE-2015-3414 CVE-2015-3415 CVE-2015-3416 Telephony Available for: Mac OS X v10.6.8 and later Impact: A local attacker can place phone calls without the user's knowledge when using Continuity Description: An issue existed in the authorization checks for placing phone calls. This issue was addressed through improved authorization checks. CVE-ID CVE-2015-3785 : Dan Bastone of Gotham Digital Science Terminal Available for: Mac OS X v10.6.8 and later Impact: Maliciously crafted text could mislead the user in Terminal Description: Terminal did not handle bidirectional override characters in the same way when displaying text and when selecting text. This issue was addressed by suppressing bidirectional override characters in Terminal. CVE-ID CVE-2015-5883 : an anonymous researcher tidy Available for: Mac OS X v10.6.8 and later Impact: Visiting a maliciously crafted website may lead to arbitrary code execution Description: Multiple memory corruption issues existed in tidy. These issues were addressed through improved memory handling. CVE-ID CVE-2015-5522 : Fernando Munoz of NULLGroup.com CVE-2015-5523 : Fernando Munoz of NULLGroup.com Time Machine Available for: Mac OS X v10.6.8 and later Impact: A local attacker may gain access to keychain items Description: An issue existed in backups by the Time Machine framework. This issue was addressed through improved coverage of Time Machine backups. CVE-ID CVE-2015-5854 : Jonas Magazinius of Assured AB Note: OS X El Capitan 10.11 includes the security content of Safari 9: https://support.apple.com/kb/HT205265. OS X El Capitan 10.11 may be obtained from the Mac App Store: http://www.apple.com/support/downloads/ Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJWDB2wAAoJEBcWfLTuOo7t0sYP/2L3JOGPkHH8XUh2YHpu5qaw S5F2v+SRpWleKQBVsGZ7oA8PV0rBTzEkzt8K1tNxYmxEqL9f/TpRiGoforn89thO /hOtmVOfUcBjPZ4XKwMVzycfSMC9o6LxWTLEKDVylE+F+5jkXafOC9QaqD11dxX6 QhENkpS1BwrKhyaSVxEcgBQtZM9aTsVdZ78rTCb9XTn6gDnvs8NfIQquFOnaQT54 YJ36e5UcUsnyBIol+yGDbC3ZEhzSVIGE5/8/NFlFfRXLgnJArxD8lqz8WdfU9fop hpT/dDqqAdYbRcW1ihcG1haiNHgP9yQCY5jRNfttb+Tc/kIi/QmPkEO0QS8Ygt/O c3sUbNulr1LCinymFVwx16CM1DplGS/GmBL18BAEBnL6yi9tEhYDynZWLSEa37VR 8q802rXRSF10Wct9/kEeR4HgY/1k0KK/4Uddm3c0YyOU21ya7NAhoHGwmDa9g11r N1TniOK8tPiCGjRNOJwuF6DKxD9L3Fv44bVlxAarGUGYkICqzaNS+bgKI1aQNahT fJ91x5uKD4+L9v9c5slkoDIvWqIhO9oyuxgnmC5GstkwFplFXSOklLkTktjLGNn1 nJq8cPnZ/3E1RXTEwVhGljYw5pdZHNx98XmLomGrPqVlZfjGURK+5AXdf2pOlt2e g6jld/w5tPuCFhGucE7Z =XciV -----END PGP SIGNATURE----- . tl;dr heap and integer overflows in ICU, many packages affected, unknown if these can be exploited or not - everyone names vulns nowadays, so I name these I-C-U-FAIL. Hi, I have found two vulnerabilities in the ICU library while fuzzing LibreOffice, full details in the advisory below. Disclosure of these was done initially to LibreOffice and then to distro-security. I then reported it to Chromium, Android and finally CERT, so I ended up breaking the rules of distro-security which requires that any vulnerability reported to the list is made public in 14 days. I apologise for this to oss-security, distro-security and Solar Designer, and will not do it again. A full copy of the advisory below can be found in my repo at https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txt. Regards, Pedro >> Heap overflow and integer overflow in ICU library >> Discovered by Pedro Ribeiro (pedrib@gmail.com), Agile Information Security ================================================================================= Disclosure: 04/05/2015 / Last updated: 04/05/2015 >> Background on the affected products: ICU is a mature, widely used set of C/C++ and Java libraries providing Unicode and Globalization support for software applications. ICU is widely portable and gives applications the same results on all platforms and between C/C++ and Java software. This library is used by LibreOffice and hundreds of other software packages. Proof of concept files can be downloaded from [1]. These files have been tested with LibreOffice 4.3.3.2 and LibreOffice 4.4.0-beta2 and ICU 52. Note that at this point in time it is unknown whether these vulnerabilities are exploitable. Thanks to CERT [2] for helping disclose these vulnerabilities. >> Technical details: #1 Vulnerability: Heap overflow CVE-2014-8146 The code to blame is the following (from ubidi.c:2148 in ICU 52): dirProp=dirProps[limit-1]; if((dirProp==LRI || dirProp==RLI) && limit<pBiDi->length) { pBiDi->isolateCount++; pBiDi->isolates[pBiDi->isolateCount].stateImp=stateImp; pBiDi->isolates[pBiDi->isolateCount].state=levState.state; pBiDi->isolates[pBiDi->isolateCount].start1=start1; } else processPropertySeq(pBiDi, &levState, eor, limit, limit); Under certain conditions, isolateCount is incremented too many times, which results in several out of bounds writes. See [1] for a more detailed analysis. #2 Vulnerability: Integer overflow CVE-2014-8147 The overflow is on the resolveImplicitLevels function (ubidi.c:2248): pBiDi->isolates[pBiDi->isolateCount].state=levState.state; pBiDi->isolates[].state is a int16, while levState.state is a int32. The overflow causes an error when performing a malloc on pBiDi->insertPoints->points because insertPoints is adjacent in memory to isolates[]. The Isolate struct is defined in ubidiimp.h:184 typedef struct Isolate { int32_t startON; int32_t start1; int16_t stateImp; int16_t state; } Isolate; LevState is defined in ubidi.c:1748 typedef struct { const ImpTab * pImpTab; /* level table pointer */ const ImpAct * pImpAct; /* action map array */ int32_t startON; /* start of ON sequence */ int32_t startL2EN; /* start of level 2 sequence */ int32_t lastStrongRTL; /* index of last found R or AL */ int32_t state; /* current state */ int32_t runStart; /* start position of the run */ UBiDiLevel runLevel; /* run level before implicit solving */ } LevState; >> Fix: The ICU versions that are confirmed to be affected are 52 to 54, but earlier versions might also be affected. Upgrade to ICU 55.1 to fix these vulnerabilities. Note that there are probably many other software packages that embed the ICU code and will probably also need to be updated. >> References: [1] https://github.com/pedrib/PoC/raw/master/generic/i-c-u-fail.7z [2] https://www.kb.cert.org/vuls/id/602540 . Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/icu < 55.1 >= 55.1 Description =========== Multiple vulnerabilities have been discovered in International Components for Unicode. Please review the CVE identifiers referenced below for details. Workaround ========== There is no known workaround at this time. Resolution ========== All International Components for Unicode users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/icu-55.1" References ========== [ 1 ] CVE-2014-8146 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-8146 [ 2 ] CVE-2014-8147 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-8147 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201507-04 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2015 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5

AFFECTED PRODUCTS

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remote

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digital error

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REFERENCES

CREDITS

Pedro Ribeiro of Agile Information Security

SOURCES

LAST UPDATE DATE

2024-11-23T19:55:20.849000+00:00

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