CWE
362
Advisory Published

USN-1244-1: Linux kernel (OMAP4) vulnerabilities

First published: Tue Oct 25 2011(Updated: )

Dan Rosenberg discovered that the Linux kernel X.25 implementation incorrectly parsed facilities. A remote attacker could exploit this to crash the kernel, leading to a denial of service. (CVE-2010-3873) Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2183) Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. (CVE-2011-2491) Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2494) Vasiliy Kulikov discovered that /proc/PID/io did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2495) It was discovered that the wireless stack incorrectly verified SSID lengths. A local attacker could exploit this to cause a denial of service or gain root privileges. (CVE-2011-2517) It was discovered that the EXT4 filesystem contained multiple off-by-one flaws. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2695) Christian Ohm discovered that the perf command looks for configuration files in the current directory. If a privileged user were tricked into running perf in a directory containing a malicious configuration file, an attacker could run arbitrary commands and possibly gain privileges. (CVE-2011-2905) Vasiliy Kulikov discovered that the Comedi driver did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-2909) Yogesh Sharma discovered that CIFS did not correctly handle UNCs that had no prefixpaths. A local attacker with access to a CIFS partition could exploit this to crash the system, leading to a denial of service. (CVE-2011-3363)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-2.6.35-903-omap4<2.6.35-903.26
2.6.35-903.26
Ubuntu gir1.2-packagekitglib-1.0=10.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-1244-1?

    The severity of USN-1244-1 is high due to the potential for denial of service vulnerabilities.

  • How do I fix USN-1244-1?

    To fix USN-1244-1, you should update your kernel to the latest version provided by your Linux distribution.

  • What are the vulnerabilities addressed in USN-1244-1?

    USN-1244-1 addresses vulnerabilities related to the Linux kernel's X.25 implementation and KSM memory merging support.

  • Who discovered the vulnerabilities in USN-1244-1?

    The vulnerabilities in USN-1244-1 were discovered by Dan Rosenberg and Andrea Righi.

  • Which version of Ubuntu is affected by USN-1244-1?

    USN-1244-1 affects Ubuntu version 10.10 with the specified kernel package linux-image-2.6.35-903-omap4.

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