USN-1458-1: Linux kernel (OMAP4) vulnerabilities

31 May 2012

linux-ti-omap4 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 11.04

Summary

Several security issues were fixed in the kernel.

Software Description

  • linux-ti-omap4 - Linux kernel for OMAP4

Details

A flaw was found in the Linux’s kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. (CVE-2011-4086)

A flaw was discovered in the Linux kernel’s cifs file system. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. (CVE-2012-1090)

H. Peter Anvin reported a flaw in the Linux kernel that could crash the system. A local user could exploit this flaw to crash the system. (CVE-2012-1097)

A flaw was discovered in the Linux kernel’s cgroups subset. A local attacker could use this flaw to crash the system. (CVE-2012-1146)

A flaw was found in the Linux kernel’s ext4 file system when mounting a corrupt filesystem. A user-assisted remote attacker could exploit this flaw to cause a denial of service. (CVE-2012-2100)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 11.04
linux-image-2.6.38-1209-omap4 - 2.6.38-1209.24

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make all the necessary changes.

References