ID

VAR-201201-0030

CVE

CVE-2011-4576

TITLE

Fiery Network Controllers for Xerox DocuColor 242/252/260 Printer/Copier use a vulnerable version of OpenSSL

DESCRIPTION

The SSL 3.0 implementation in OpenSSL before 0.9.8s and 1.x before 1.0.0f does not properly initialize data structures for block cipher padding, which might allow remote attackers to obtain sensitive information by decrypting the padding data sent by an SSL peer. Fiery Network Controllers for Xerox DocuColor 242/252/260 Printer/Copier use a vulnerable version of OpenSSL (0.9.8o). OpenSSL prone to multiple security vulnerabilities. An attacker may leverage these issues to obtain sensitive information, cause a denial-of-service condition and perform unauthorized actions. Multiple numeric conversion errors, leading to a buffer overflow, were found in the way OpenSSL parsed ASN.1 (Abstract Syntax Notation One) data from BIO (OpenSSL's I/O abstraction) inputs. Specially-crafted DER (Distinguished Encoding Rules) encoded data read from a file or other BIO input could cause an application using the OpenSSL library to crash or, potentially, execute arbitrary code. Warning: Before applying this update, back up your JBoss Enterprise Application Platform's "server/[PROFILE]/deploy/" directory, along with all other customized configuration files. All users of JBoss Enterprise Application Platform 5.1.2 for Solaris and Microsoft Windows as provided from the Red Hat Customer Portal are advised to apply this update. Solution: The References section of this erratum contains a download link (you must log in to download the update). Before applying the update, back up your existing JBoss Enterprise Application Platform installation (including all applications and configuration files). HP SSL for OpenVMS v 1.4-453 (based on OpenSSL 0.9.8o stream) and earlier. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: rhev-hypervisor5 security and bug fix update Advisory ID: RHSA-2012:0168-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0168.html Issue date: 2012-02-21 CVE Names: CVE-2011-4109 CVE-2011-4576 CVE-2011-4619 CVE-2012-0029 CVE-2012-0207 ===================================================================== 1. Summary: An updated rhev-hypervisor5 package that fixes several security issues and various bugs is now available. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: RHEV Hypervisor for RHEL-5 - noarch 3. Description: The rhev-hypervisor5 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. A heap overflow flaw was found in the way QEMU-KVM emulated the e1000 network interface card. A privileged guest user in a virtual machine whose network interface is configured to use the e1000 emulated driver could use this flaw to crash the host or, possibly, escalate their privileges on the host. (CVE-2012-0029) A divide-by-zero flaw was found in the Linux kernel's igmp_heard_query() function. An attacker able to send certain IGMP (Internet Group Management Protocol) packets to a target system could use this flaw to cause a denial of service. (CVE-2012-0207) A double free flaw was discovered in the policy checking code in OpenSSL. A remote attacker could use this flaw to crash an application that uses OpenSSL by providing an X.509 certificate that has specially-crafted policy extension data. (CVE-2011-4109) An information leak flaw was found in the SSL 3.0 protocol implementation in OpenSSL. (CVE-2011-4576) It was discovered that OpenSSL did not limit the number of TLS/SSL handshake restarts required to support Server Gated Cryptography. A remote attacker could use this flaw to make a TLS/SSL server using OpenSSL consume an excessive amount of CPU by continuously restarting the handshake. (CVE-2011-4619) Red Hat would like to thank Nicolae Mogoreanu for reporting CVE-2012-0029, and Simon McVittie for reporting CVE-2012-0207. This updated package provides updated components that include fixes for various security issues. These issues have no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers: CVE-2006-1168 and CVE-2011-2716 (busybox issues) CVE-2009-5029, CVE-2009-5064, CVE-2010-0830 and CVE-2011-1089 (glibc issues) CVE-2011-1083, CVE-2011-3638, CVE-2011-4086, CVE-2011-4127 and CVE-2012-0028 (kernel issues) CVE-2011-1526 (krb5 issue) CVE-2011-4347 (kvm issue) CVE-2010-4008, CVE-2011-0216, CVE-2011-2834, CVE-2011-3905, CVE-2011-3919 and CVE-2011-1944 (libxml2 issues) CVE-2011-1749 (nfs-utils issue) CVE-2011-4108 (openssl issue) CVE-2011-0010 (sudo issue) CVE-2011-1675 and CVE-2011-1677 (util-linux issues) CVE-2010-0424 (vixie-cron issue) This updated rhev-hypervisor5 package fixes various bugs. Documentation of these changes will be available shortly in the Technical Notes document: https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Virtualization_for_Servers/2.2/html/Technical_Notes/index.html Users of Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which fixes these issues. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 606191 - after upgrade , reboot can't shut off network successfully and back to firstboot menu again 627538 - System will not boot sometimes when using rhevm to do upgrade twice. 650179 - rhevm bridge came up instead of breth0 after fail to configure network 675325 - Changes to networking always clear the contents of resolv.conf 696875 - RHEVH bootup hanging in ovirt-early when doing LVM scanning 717535 - [RFE] No confirm message for ntp server setting 728895 - RHEV-H rpm should include a versions text file 732948 - CCISS: Auto install fail at creating physical volume. 734110 - rhevh - upgrade ovirt node fails due to nonexistent breth0 734480 - [RFE] Add virt-who package to RHEVH 734710 - Register RHN satellite will fail if RHN satellite password include space. 740127 - Provide our CPE name in a new system file 743938 - Make rhev-hypervisor RPM multi-installable like the kernel 747519 - RHEV-H 5.8 register to RHN will fail. 747647 - Change rhev-hypervisor RPM to be rhev-hypervisor5 to allow coinstallations with rhev-hypervisor6 756178 - remove redundant brcm-iscsi.log rotation from ovirt-node now that it is in iscsi-initiator-utils 758465 - RHEV-H 5.8 register to RHN will fail if password contains quotes or spaces 759462 - Can not retrieve running guests UUID in RHEVH node. 759632 - virt-who debugging output going to stderr always 759635 - Revert workaround of virt-who output 761357 - Multipathd service is stopped by default cause change password failed in single mode. 768256 - network layout is incorrect when configure network with nic up 771771 - CVE-2011-4109 openssl: double-free in policy checks 771775 - CVE-2011-4576 openssl: uninitialized SSL 3.0 padding 771780 - CVE-2011-4619 openssl: SGC restart DoS attack 772075 - CVE-2012-0029 qemu-kvm: e1000: process_tx_desc legacy mode packets heap overflow 772867 - CVE-2012-0207 kernel: igmp: Avoid zero delay when receiving odd mixture of IGMP queries 783625 - The setup command should only allow password setting and viewing logs in single mode. 6. Package List: RHEV Hypervisor for RHEL-5: noarch: rhev-hypervisor5-5.8-20120202.0.el5.noarch.rpm rhev-hypervisor5-tools-5.8-20120202.0.el5.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-4109.html https://www.redhat.com/security/data/cve/CVE-2011-4576.html https://www.redhat.com/security/data/cve/CVE-2011-4619.html https://www.redhat.com/security/data/cve/CVE-2012-0029.html https://www.redhat.com/security/data/cve/CVE-2012-0207.html https://access.redhat.com/security/updates/classification/#important https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Virtualization_for_Servers/2.2/html/Technical_Notes/index.html 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPQ1yHXlSAg2UNWIIRAl9/AJ9JmPpSO5U2xwDBKDZA8y5To8EVcwCfZFGN bzF952CZ/r5T3LUF9kY6X8c= =IdNq -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201203-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: OpenSSL: Multiple vulnerabilities Date: March 06, 2012 Bugs: #397695, #399365 ID: 201203-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in OpenSSL, allowing remote attackers to cause a Denial of Service or obtain sensitive information. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/openssl < 1.0.0g *>= 0.9.8t >= 1.0.0g Description =========== Multiple vulnerabilities have been found in OpenSSL: * Timing differences for decryption are exposed by CBC mode encryption in OpenSSL's implementation of DTLS (CVE-2011-4108). * An incorrect fix for CVE-2011-4108 creates an unspecified vulnerability for DTLS applications using OpenSSL (CVE-2012-0050). Workaround ========== There is no known workaround at this time. Resolution ========== All OpenSSL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.0.0g" References ========== [ 1 ] CVE-2011-4108 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4108 [ 2 ] CVE-2011-4109 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4109 [ 3 ] CVE-2011-4576 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4576 [ 4 ] CVE-2011-4577 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4577 [ 5 ] CVE-2011-4619 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4619 [ 6 ] CVE-2012-0027 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0027 [ 7 ] CVE-2012-0050 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0050 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201203-12.xml 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 2012 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 . Content-Disposition: inline ==========================================================================Ubuntu Security Notice USN-1357-1 February 09, 2012 openssl vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 11.10 - Ubuntu 11.04 - Ubuntu 10.10 - Ubuntu 10.04 LTS - Ubuntu 8.04 LTS Summary: Multiple vulnerabilities exist in OpenSSL that could expose sensitive information or cause applications to crash. Software Description: - openssl: Secure Socket Layer (SSL) binary and related cryptographic tools Details: It was discovered that the elliptic curve cryptography (ECC) subsystem in OpenSSL, when using the Elliptic Curve Digital Signature Algorithm (ECDSA) for the ECDHE_ECDSA cipher suite, did not properly implement curves over binary fields. This could allow an attacker to determine private keys via a timing attack. This issue only affected Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04. (CVE-2011-1945) Adam Langley discovered that the ephemeral Elliptic Curve Diffie-Hellman (ECDH) functionality in OpenSSL did not ensure thread safety while processing handshake messages from clients. This issue only affected Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04. This could allow a remote attacker to recover plaintext. This issue only affected Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04. (CVE-2011-4109) It was discovered that OpenSSL, in certain circumstances involving ECDH or ECDHE cipher suites, used an incorrect modular reduction algorithm in its implementation of the P-256 and P-384 NIST elliptic curves. This issue only affected Ubuntu 8.04 LTS. (CVE-2011-4576) Andrew Chi discovered that OpenSSL, when RFC 3779 support is enabled, could trigger an assert when handling an X.509 certificate containing certificate-extension data associated with IP address blocks or Autonomous System (AS) identifiers. (CVE-2011-4619) Andrey Kulikov discovered that the GOST block cipher engine in OpenSSL did not properly handle invalid parameters. This could allow a remote attacker to cause a denial of service via crafted data from a TLS client. This issue only affected Ubuntu 11.10. (CVE-2012-0027) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 11.10: libssl1.0.0 1.0.0e-2ubuntu4.2 openssl 1.0.0e-2ubuntu4.2 Ubuntu 11.04: libssl0.9.8 0.9.8o-5ubuntu1.2 openssl 0.9.8o-5ubuntu1.2 Ubuntu 10.10: libssl0.9.8 0.9.8o-1ubuntu4.6 openssl 0.9.8o-1ubuntu4.6 Ubuntu 10.04 LTS: libssl0.9.8 0.9.8k-7ubuntu8.8 openssl 0.9.8k-7ubuntu8.8 Ubuntu 8.04 LTS: libssl0.9.8 0.9.8g-4ubuntu3.15 openssl 0.9.8g-4ubuntu3.15 After a standard system update you need to reboot your computer to make all the necessary changes. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities: CVE-2011-4108 The DTLS implementation performs a MAC check only if certain padding is valid, which makes it easier for remote attackers to recover plaintext via a padding oracle attack. CVE-2011-4109 A double free vulnerability when X509_V_FLAG_POLICY_CHECK is enabled, allows remote attackers to cause applications crashes and potentially allow execution of arbitrary code by triggering failure of a policy check. CVE-2011-4354 On 32-bit systems, the operations on NIST elliptic curves P-256 and P-384 are not correctly implemented, potentially leaking the private ECC key of a TLS server. For the oldstable distribution (lenny), these problems have been fixed in version 0.9.8g-15+lenny15. For the stable distribution (squeeze), these problems have been fixed in version 0.9.8o-4squeeze5. For the testing distribution (wheezy) and the unstable distribution (sid), these problems have been fixed in version 1.0.0f-1. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/ . Relevant releases/architectures: RHEL Desktop Workstation (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 3. Description: OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength, general purpose cryptography library. It was discovered that the Datagram Transport Layer Security (DTLS) protocol implementation in OpenSSL leaked timing information when performing certain operations. For the update to take effect, all services linked to the OpenSSL library must be restarted, or the system rebooted. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/openssl-0.9.8e-20.el5_7.1.src.rpm i386: openssl-0.9.8e-20.el5_7.1.i386.rpm openssl-0.9.8e-20.el5_7.1.i686.rpm openssl-debuginfo-0.9.8e-20.el5_7.1.i386.rpm openssl-debuginfo-0.9.8e-20.el5_7.1.i686.rpm openssl-perl-0.9.8e-20.el5_7.1.i386.rpm x86_64: openssl-0.9.8e-20.el5_7.1.i686.rpm openssl-0.9.8e-20.el5_7.1.x86_64.rpm openssl-debuginfo-0.9.8e-20.el5_7.1.i686.rpm openssl-debuginfo-0.9.8e-20.el5_7.1.x86_64.rpm openssl-perl-0.9.8e-20.el5_7.1.x86_64.rpm RHEL Desktop Workstation (v. Release Date: 2012-01-19 Last Updated: 2012-01-19 ------------------------------------------------------------------------------ Potential Security Impact: Remote Denial of Service (DoS), unauthorized access Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY A potential security vulnerability has been identified with HP-UX OpenSSL. This vulnerability could be exploited remotely to create a Denial of Service (DoS) or to gain unauthorized access. SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP-UX B.11.11, B.11.23, B.11.31 running OpenSSL before vA.00.09.08s. BACKGROUND CVSS 2.0 Base Metrics =========================================================== Reference Base Vector Base Score CVE-2011-3210 (AV:N/AC:L/Au:N/C:N/I:N/A:P) 5.0 CVE-2011-4108 (AV:N/AC:M/Au:N/C:P/I:N/A:N) 4.3 CVE-2011-4109 (AV:N/AC:M/Au:N/C:P/I:N/A:N) 9.3 CVE-2011-4576 (AV:N/AC:L/Au:N/C:P/I:N/A:N) 5.0 CVE-2011-4577 (AV:N/AC:M/Au:N/C:N/I:N/A:P) 4.3 CVE-2011-4619 (AV:N/AC:L/Au:N/C:N/I:N/A:P) 5.0 =========================================================== Information on CVSS is documented in HP Customer Notice: HPSN-2008-002 RESOLUTION HP has provided upgrades to resolve this vulnerability. The upgrades are available from the following location ftp://ossl098s:Secure12@ftp.usa.hp.com HP-UX Release / Depot Name B.11.11 PA (32 and 64) / OpenSSL_A.00.09.08s.001_HP-UX_B.11.11_32+64.depot B.11.23 (PA and IA) / OpenSSL_A.00.09.08s.002_HP-UX_B.11.23_IA-PA.depot B.11.31 (PA and IA) / OpenSSL_A.00.09.08s.003_HP-UX_B.11.31_IA-PA.depot MANUAL ACTIONS: Yes - Update Install OpenSSL A.00.09.08s or subsequent PRODUCT SPECIFIC INFORMATION HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins issued by HP and lists recommended actions that may apply to a specific HP-UX system. It can also download patches and create a depot automatically. For more information see: https://www.hp.com/go/swa The following text is for use by the HP-UX Software Assistant. AFFECTED VERSIONS HP-UX B.11.11 ================== openssl.OPENSSL-CER openssl.OPENSSL-CONF openssl.OPENSSL-DOC openssl.OPENSSL-INC openssl.OPENSSL-LIB openssl.OPENSSL-MAN openssl.OPENSSL-MIS openssl.OPENSSL-PRNG openssl.OPENSSL-PVT openssl.OPENSSL-RUN openssl.OPENSSL-SRC action: Install revision A.00.09.08s.001 or subsequent HP-UX B.11.23 ================== openssl.OPENSSL-CER openssl.OPENSSL-CONF openssl.OPENSSL-DOC openssl.OPENSSL-INC openssl.OPENSSL-LIB openssl.OPENSSL-MAN openssl.OPENSSL-MIS openssl.OPENSSL-PRNG openssl.OPENSSL-PVT openssl.OPENSSL-RUN openssl.OPENSSL-SRC action: Install revision A.00.09.08s.002 or subsequent HP-UX B.11.31 ================== openssl.OPENSSL-CER openssl.OPENSSL-CONF openssl.OPENSSL-DOC openssl.OPENSSL-INC openssl.OPENSSL-LIB openssl.OPENSSL-MAN openssl.OPENSSL-MIS openssl.OPENSSL-PRNG openssl.OPENSSL-PVT openssl.OPENSSL-RUN openssl.OPENSSL-SRC action: Install revision A.00.09.08s.003 or subsequent END AFFECTED VERSIONS HISTORY Version:1 (rev.1) 19 January 2012 Initial release Third Party Security Patches: Third party security patches that are to be installed on systems running HP software products should be applied in accordance with the customer's patch management policy. Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HP Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hp.com. Report: To report a potential security vulnerability with any HP supported product, send Email to: security-alert@hp.com Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via Email: http://h41183.www4.hp.com/signup_alerts.php?jumpid=hpsc_secbulletins Security Bulletin List: A list of HP Security Bulletins, updated periodically, is contained in HP Security Notice HPSN-2011-001: https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c02964430 Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://h20566.www2.hp.com/portal/site/hpsc/public/kb/secBullArchive/ Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB. 3C = 3COM 3P = 3rd Party Software GN = HP General Software HF = HP Hardware and Firmware MP = MPE/iX MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PI = Printing and Imaging PV = ProCurve ST = Storage Software TU = Tru64 UNIX UX = HP-UX Copyright 2012 Hewlett-Packard Development Company, L.P. Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental,special or consequential damages including downtime cost; lost profits;damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of Hewlett-Packard products referenced herein are trademarks of Hewlett-Packard Company in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners. DTLS Plaintext Recovery Attack (CVE-2011-4108) ============================================== Nadhem Alfardan and Kenny Paterson have discovered an extension of the Vaudenay padding oracle attack on CBC mode encryption which enables an efficient plaintext recovery attack against the OpenSSL implementation of DTLS. Their attack exploits timing differences arising during decryption processing. A research paper describing this attack can be found at http://www.isg.rhul.ac.uk/~kp/dtls.pdf Thanks go to Nadhem Alfardan and Kenny Paterson of the Information Security Group at Royal Holloway, University of London (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> for preparing the fix. Affected users should upgrade to OpenSSL 1.0.0f or 0.9.8s. The bug does not occur unless this flag is set. Users of OpenSSL 1.0.0 are not affected. This flaw was discovered by Ben Laurie and a fix provided by Emilia Kasper <ekasper@google.com> of Google. Affected users should upgrade to OpenSSL 0.9.8s. This affects both clients and servers that accept SSL 3.0 handshakes: those that call SSL_CTX_new with SSLv3_{server|client}_method or SSLv23_{server|client}_method. It does not affect TLS. This could include sensitive contents of previously freed memory. However, in practice, most deployments do not use SSL_MODE_RELEASE_BUFFERS and therefore have a single write buffer per connection. That write buffer is partially filled with non-sensitive, handshake data at the beginning of the connection and, thereafter, only records which are longer any any previously sent record leak any non-encrypted data. This, combined with the small number of bytes leaked per record, serves to limit to severity of this issue. Thanks to Adam Langley <agl@chromium.org> for identifying and fixing this issue. Affected users should upgrade to OpenSSL 1.0.0f or 0.9.8s. Malformed RFC 3779 Data Can Cause Assertion Failures (CVE-2011-4577) ==================================================================== RFC 3779 data can be included in certificates, and if it is malformed, may trigger an assertion failure. This could be used in a denial-of-service attack. Note, however, that in the standard release of OpenSSL, RFC 3779 support is disabled by default, and in this case OpenSSL is not vulnerable. Builds of OpenSSL are vulnerable if configured with "enable-rfc3779". Thanks to Andrew Chi, BBN Technologies, for discovering the flaw, and Rob Austein <sra@hactrn.net> for fixing it. Affected users should upgrade to OpenSSL 1.0.0f or 0.9.8s. Thanks to George Kadianakis <desnacked@gmail.com> for identifying this issue and to Adam Langley <agl@chromium.org> for fixing it. Affected users should upgrade to OpenSSL 1.0.0f or 0.9.8s. Invalid GOST parameters DoS Attack (CVE-2012-0027) =================================================== A malicious TLS client can send an invalid set of GOST parameters which will cause the server to crash due to lack of error checking. This could be used in a denial-of-service attack. Only users of the OpenSSL GOST ENGINE are affected by this bug. Thanks to Andrey Kulikov <amdeich@gmail.com> for identifying and fixing this issue. Affected users should upgrade to OpenSSL 1.0.0f. References ========== URL for this Security Advisory: https://www.openssl.org/news/secadv_20120104.txt

AFFECTED PRODUCTS