Advisory Published

USN-1945-1: Linux kernel (OMAP4) vulnerabilities

First published: Fri Sep 06 2013(Updated: )

A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. (CVE-2012-5374) A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim. (CVE-2012-5375) Vasily Kulikov discovered a flaw in the Linux Kernel's perf tool that allows for privilege escalation. A local user could exploit this flaw to run commands as root when using the perf tool. (CVE-2013-1060) A flaw was discovered in the Xen subsystem of the Linux kernel when it provides read-only access to a disk that supports TRIM or SCSI UNMAP to a guest OS. A privileged user in the guest OS could exploit this flaw to destroy data on the disk, even though the guest OS should not be able to write to the disk. (CVE-2013-2140) A flaw was discovered in the Linux kernel when an IPv6 socket is used to connect to an IPv4 destination. An unprivileged local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-2232) An information leak was discovered in the IPSec key_socket implementation in the Linux kernel. An local user could exploit this flaw to examine potentially sensitive information in kernel memory. (CVE-2013-2234) Hannes Frederic Sowa discovered a flaw in setsockopt UDP_CORK option in the Linux kernel's IPv6 stack. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-4162) Hannes Frederic Sowa discovered a flaw in the IPv6 subsystem of the Linux kernel when the IPV6_MTU setsockopt option has been specified in combination with the UDP_CORK option. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-4163)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-3.5.0-232-omap4<3.5.0-232.48
3.5.0-232.48
Ubuntu gir1.2-packagekitglib-1.0=12.10

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-1945-1?

    The severity of USN-1945-1 is classified as a denial of service vulnerability.

  • How do I fix USN-1945-1?

    To fix USN-1945-1, you should update your Ubuntu system to the latest kernel version that addresses the vulnerability.

  • What versions of Ubuntu are affected by USN-1945-1?

    USN-1945-1 affects Ubuntu 12.10 specifically for the linux-image-3.5.0-232-omap4 package.

  • What component is vulnerable in USN-1945-1?

    The vulnerable component in USN-1945-1 is the Btrfs file system within the Linux kernel.

  • Can a remote attacker exploit USN-1945-1?

    No, USN-1945-1 is a local denial of service flaw, meaning it can only be exploited by a local user.

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