-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ---------------------------------------------------------------------- Debian Security Advisory DSA-2632-1 security@xxxxxxxxxx http://www.debian.org/security/ Dann Frazier February 25, 2013 http://www.debian.org/security/faq - ---------------------------------------------------------------------- Package : linux-2.6 Vulnerability : privilege escalation/denial of service Problem type : local Debian-specific: no CVE Id(s) : CVE-2013-0231 CVE-2013-0871 Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2013-0231 Jan Beulich provided a fix for an issue in the Xen PCI backend drivers. Users of guests on a system using passed-through PCI devices can create a denial of service of the host system due to the use of non-ratelimited kernel log messages. CVE-2013-0871 Suleiman Souhlal and Salman Qazi of Google, with help from Aaron Durbin and Michael Davidson of Google, discovered an issue in the ptrace subsystem. Due to a race condition with PTRACE_SETREGS, local users can cause kernel stack corruption and execution of arbitrary code. For the stable distribution (squeeze), this problem has been fixed in version 2.6.32-48squeeze1. The following matrix lists additional source packages that were rebuilt for compatibility with or to take advantage of this update: Debian 6.0 (squeeze) user-mode-linux 2.6.32-1um-4+48squeeze1 We recommend that you upgrade your linux-2.6 and user-mode-linux packages. Thanks to Micah Anderson for proof reading this text. 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@xxxxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJRLBVjAAoJEBv4PF5U/IZAu4kP/jZv5pYzgQxM89D3a2GKaaSk qZV9IHYItKaX2rWURo0vjilp0WZVASCgPX9YB3J+oTxZeMboeRVVllLIwW2L+V0B zGeQeCZM6YJmc32sGRX+8JNjdeLioDK0vTSzwhUVVJHgO7mYCuWxn8nv2edyyYYL M0qjAuwZQMuGuDeF8vH5Ef2wNibZeMavqq33OQWr7Yi32hNJdgSzojwQ4lSv81U1 YR+lMJFLnPL9BMUY4kNrGJ4eYxr5rpI4FKEItp0zPsOaskU7zIiV0oWOthUM7sk3 ljagXj/3w/a6dUqH3anAYEB7gU1wwQmHwtbQTnBGnFVgTY+P26FVWq3XEy80Fb0u K2f5OHi6ChGFXRZmprhjRq/LxlkFLWO/YUtEFpudu2qTesSq9FXRQzfRWD1FLTxS +t6RbyAEKpCdakVGjIM7zzEo6XzVC5iZBWa15c8rthuJmJtC9zvwEQTx4pVnxwNo aCqih+BbmJCZWPjDV4Csw61oRh9bDHZrvGqyw1aPrZmefeJ0VvGiwRE9Hf607Aby 2fenrRULteAvZfASZx7IuFaoXT90MKRJMb+Ha2pUyG5dt6t1xU2IQf/NZ+ib/8nl R1LxICNeHbSkcesbtWVfs11zE88FYikK/h2ZbCtF6jalUSQvIpLFDmYpKRlChUQA 4WsJP7RDW9NNCcsAwuxG =7Aaz -----END PGP SIGNATURE-----
