CWE
190
Advisory Published

USN-2289-1: Linux kernel vulnerabilities

First published: Thu Jul 17 2014(Updated: )

Sasha Levin reported a flaw in the Linux kernel's point-to-point protocol (PPP) when used with the Layer Two Tunneling Protocol (L2TP). A local user could exploit this flaw to gain administrative privileges. (CVE-2014-4943) Michael S. Tsirkin discovered an information leak in the Linux kernel's segmentation of skbs when using the zerocopy feature of vhost-net. A local attacker could exploit this flaw to gain potentially sensitive information from kernel memory. (CVE-2014-0131) An flaw was discovered in the Linux kernel's audit subsystem when auditing certain syscalls. A local attacker could exploit this flaw to obtain potentially sensitive single-bit values from kernel memory or cause a denial of service (OOPS). (CVE-2014-3917) A flaw was discovered in the Linux kernel's implementation of user namespaces with respect to inode permissions. A local user could exploit this flaw by creating a user namespace to gain administrative privileges. (CVE-2014-4014) Don Bailey discovered a flaw in the LZO decompress algorithm used by the Linux kernel. An attacker could exploit this flaw to cause a denial of service (memory corruption or OOPS). (CVE-2014-4608) Don Bailey and Ludvig Strigeus discovered an integer overflow in the Linux kernel's implementation of the LZ4 decompression algorithm, when used by code not complying with API limitations. An attacker could exploit this flaw to cause a denial of service (memory corruption) or possibly other unspecified impact. (CVE-2014-4611)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-3.11.0-26-generic-lpae<3.11.0-26.45
3.11.0-26.45
Ubuntu gir1.2-packagekitglib-1.0=13.10
All of
ubuntu/linux-image-3.11.0-26-generic<3.11.0-26.45
3.11.0-26.45
Ubuntu gir1.2-packagekitglib-1.0=13.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-2289-1?

    USN-2289-1 is classified as a high severity vulnerability due to its potential to allow local users to gain administrative privileges.

  • How do I fix USN-2289-1?

    To fix USN-2289-1, update your Linux kernel to version 3.11.0-26.45 or later.

  • Who discovered the flaw in USN-2289-1?

    The flaw in USN-2289-1 was reported by Sasha Levin and Michael S. Tsirkin.

  • What does USN-2289-1 affect?

    USN-2289-1 affects Ubuntu version 13.10 running specific kernel packages.

  • How can USN-2289-1 be exploited?

    USN-2289-1 can be exploited by a local user to gain unauthorized administrative privileges through a specific flaw in the point-to-point protocol.

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