USN-1323-1: Linux kernel vulnerabilities

11 January 2012

linux vulnerabilities

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

Ubuntu 8.04 LTS

Summary

Several security issues were fixed in the kernel.

Software Description

linux - Linux kernel

Details

Peter Huewe discovered an information leak in the handling of reading security-related TPM data. A local, unprivileged user could read the results of a previous TPM command. (CVE-2011-1162)

Clement Lecigne discovered a bug in the HFS filesystem. A local attacker could exploit this to cause a kernel oops. (CVE-2011-2203)

A flaw was found in the b43 driver in the Linux kernel. An attacker could use this flaw to cause a denial of service if the system has an active wireless interface using the b43 driver. (CVE-2011-3359)

A flaw was found in how the Linux kernel handles user-defined key types. An unprivileged local user could exploit this to crash the system. (CVE-2011-4110)

Update instructions

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

Ubuntu 8.04 LTS: linux-image-2.6.24-30-386 - 2.6.24-30.98; linux-image-2.6.24-30-generic - 2.6.24-30.98; linux-image-2.6.24-30-hppa32 - 2.6.24-30.98; linux-image-2.6.24-30-hppa64 - 2.6.24-30.98; linux-image-2.6.24-30-itanium - 2.6.24-30.98; linux-image-2.6.24-30-lpia - 2.6.24-30.98; linux-image-2.6.24-30-lpiacompat - 2.6.24-30.98; linux-image-2.6.24-30-mckinley - 2.6.24-30.98; linux-image-2.6.24-30-openvz - 2.6.24-30.98; linux-image-2.6.24-30-powerpc - 2.6.24-30.98; linux-image-2.6.24-30-powerpc-smp - 2.6.24-30.98; linux-image-2.6.24-30-powerpc64-smp - 2.6.24-30.98; linux-image-2.6.24-30-rt - 2.6.24-30.98; linux-image-2.6.24-30-server - 2.6.24-30.98; linux-image-2.6.24-30-sparc64 - 2.6.24-30.98; linux-image-2.6.24-30-sparc64-smp - 2.6.24-30.98; linux-image-2.6.24-30-virtual - 2.6.24-30.98; linux-image-2.6.24-30-xen - 2.6.24-30.98

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