ID

VAR-201404-0048

CVE

CVE-2011-3602

TITLE

router advertisement daemon of device-linux.c Vulnerable to directory traversal

DESCRIPTION

Directory traversal vulnerability in device-linux.c in the router advertisement daemon (radvd) before 1.8.2 allows local users to overwrite arbitrary files, and remote attackers to overwrite certain files, via a .. (dot dot) in an interface name. NOTE: this can be leveraged with a symlink to overwrite arbitrary files. radvd is prone to the follow security vulnerabilities: 1. Multiple local privilege-escalation vulnerability. 2. A local arbitrary file-overwrite vulnerability. 3. Multiple remote denial-of-service vulnerabilities. An attacker can exploit these issues to execute arbitrary code with administrative privileges, overwrite arbitrary files, and cause denial-of-service conditions. The software can replace IPv6 routing for stateless address auto-configuration. ========================================================================== Ubuntu Security Notice USN-1257-1 November 10, 2011 radvd 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 Summary: radvd could be made to crash or overwrite certain files if it received specially crafted network traffic. Software Description: - radvd: Router Advertisement Daemon Details: Vasiliy Kulikov discovered that radvd incorrectly parsed the ND_OPT_DNSSL_INFORMATION option. The default compiler options for affected releases should reduce the vulnerability to a denial of service. This issue only affected Ubuntu 11.04 and 11.10. (CVE-2011-3602) Vasiliy Kulikov discovered that radvd incorrectly handled certain lengths. (CVE-2011-3604) Vasiliy Kulikov discovered that radvd incorrectly handled delays when used in unicast mode, which is not the default in Ubuntu. (CVE-2011-3605) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 11.10: radvd 1:1.8-1ubuntu0.1 Ubuntu 11.04: radvd 1:1.7-1ubuntu0.1 Ubuntu 10.10: radvd 1:1.6-1ubuntu0.1 Ubuntu 10.04 LTS: radvd 1:1.3-1.1ubuntu0.1 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1257-1 CVE-2011-3601, CVE-2011-3602, CVE-2011-3604, CVE-2011-3605 Package Information: https://launchpad.net/ubuntu/+source/radvd/1:1.8-1ubuntu0.1 https://launchpad.net/ubuntu/+source/radvd/1:1.7-1ubuntu0.1 https://launchpad.net/ubuntu/+source/radvd/1:1.6-1ubuntu0.1 https://launchpad.net/ubuntu/+source/radvd/1:1.3-1.1ubuntu0.1 . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201111-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: radvd: Multiple vulnerabilities Date: November 20, 2011 Bugs: #385967 ID: 201111-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in radvd which could potentially lead to privilege escalation, data loss, or a Denial of Service. Background ========== radvd is an IPv6 router advertisement daemon for Linux and BSD. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/radvd < 1.8.2 >= 1.8.2 Description =========== Multiple vulnerabilities have been discovered in radvd. Please review the CVE identifiers referenced below for details. Workaround ========== There is no known workaround at this time. Resolution ========== All radvd users should upgrade to the latest stable version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/radvd-1.8.2" References ========== [ 1 ] CVE-2011-3601 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3601 [ 2 ] CVE-2011-3602 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3602 [ 3 ] CVE-2011-3603 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3603 [ 4 ] CVE-2011-3604 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3604 [ 5 ] CVE-2011-3605 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3605 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201111-08.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 2011 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 . This fixes a security issue and multiple vulnerabilities, which can be exploited by malicious people to cause a DoS (Denial of Service). For more information: SA46200 SOLUTION: Apply updated packages via the apt-get package manager. ---------------------------------------------------------------------- Ovum says ad hoc tools are out-dated. The best practice approach? Fast vulnerability intelligence, threat handling, and setup in one tool. Read the new report on the Secunia VIM: http://secunia.com/products/corporate/vim/ovum_2011_request/ ---------------------------------------------------------------------- TITLE: radvd Privilege Escalation and Denial of Service Vulnerabilities SECUNIA ADVISORY ID: SA46200 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/46200/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=46200 RELEASE DATE: 2011-10-16 DISCUSS ADVISORY: http://secunia.com/advisories/46200/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/46200/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=46200 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: Some security issues and vulnerabilities have been reported in radvd, which can be exploited by malicious, local users to gain escalated privileges and by malicious people to cause a DoS (Denial of Service). 1) A signedness error within the "process_ra()" function (process.c) when parsing the "ND_OPT_DNSSL_INFORMATION" option can be exploited to cause a stack-based buffer overflow. 2) An input sanitation error within the "set_interface_var()" function (device-linux.c) can be exploited to e.g. 3) The daemon does not properly terminate if the privilege separation failed, which can lead to the daemon running with higher privileges than intended. 4) Boundary errors within the "process_ra()" function (process.c) can be exploited to cause out-of-bounds reads and crash the service. 5) An error within the unicast-only mode can be exploited to cause a delay within the processing by flooding the service with ND_ROUTER_SOLICIT messages. Note: Successful exploitation of this vulnerability requires that the service is running in unicast-only mode. Prior versions may also be affected. SOLUTION: Update to version 1.8.2, which fixes vulnerabilities #1, #3, #4, and #5. Security issue #2 is fixed in the GIT repository. Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ PROVIDED AND/OR DISCOVERED BY: Vasiliy Kulikov ORIGINAL ADVISORY: http://www.openwall.com/lists/oss-security/2011/10/06/3 https://github.com/reubenhwk/radvd/blob/fc207cc6a2de572226133276ee30a9a313dca902/CHANGES https://github.com/reubenhwk/radvd/commit/7a1471b62da88373e8f4209d503307c5d841b81f OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ---------------------------------------------------------------------- . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-2323-1 security@debian.org http://www.debian.org/security/ Yves-Alexis Perez October 26, 2011 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : radvd Vulnerability : several Problem type : remote Debian-specific: no CVE ID : CVE-2011-3602 CVE-2011-3604 CVE-2011-3605 Debian Bug : 644614 Multiple security issues were discovered by Vasiliy Kulikov in radvd, an IPv6 Router Advertisement daemon: CVE-2011-3602 set_interface_var() function doesn't check the interface name, which is chosen by an unprivileged user. CVE-2011-3604 process_ra() function lacks multiple buffer length checks which could lead to memory reads outside the stack, causing a crash of the daemon. CVE-2011-3605 process_rs() function calls mdelay() (a function to wait for a defined time) unconditionnally when running in unicast-only mode. As this call is in the main thread, that means all request processing is delayed (for a time up to MAX_RA_DELAY_TIME, 500 ms by default). An attacked could flood the daemon with router solicitations in order to fill the input queue, causing a temporary denial of service (processing would be stopped during all the mdelay() calls). Note: upstream and Debian default is to use anycast mode. For the oldstable distribution (lenny), this problem has been fixed in version 1:1.1-3.1. For the stable distribution (squeeze), this problem has been fixed in version 1:1.6-1.1. For the testing distribution (wheezy), this problem has been fixed in version 1:1.8-1.2. For the unstable distribution (sid), this problem has been fixed in version 1:1.8-1.2. We recommend that you upgrade your radvd packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk6q2QcACgkQXm3vHE4uylqlEQCgpdFwHzpKLF6KHlJs4y/ykeo/ oEYAniJXFaff25pMtXzM6Ovu8zslZm7H =VfHu -----END PGP SIGNATURE-----

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

path traversal

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Vasiliy Kulikov

SOURCES

LAST UPDATE DATE

2024-08-14T13:57:59.868000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE