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Debian Security Advisory DSA 2632-1 (linux-2.6 - privilege escalation/denial of service)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
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.
Affected Software
Affected Software
linux-2.6 on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
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-linux2.6.32-1um-4+48squeeze1 We recommend that you upgrade your linux-2.6 and user-mode-linux packages.