USN-1555-1: Linux kernel vulnerabilities

5 September 2012

linux vulnerabilities

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

  • Ubuntu 10.04 LTS

Summary

Several security issues were fixed in the kernel.

Software Description

  • linux - Linux kernel

Details

Chen Haogang discovered an integer overflow that could result in memory corruption. A local unprivileged user could use this to crash the system. (CVE-2012-0044)

A flaw was found in the Linux kernel’s Reliable Datagram Sockets (RDS) protocol implementation. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2012-2372)

Some errors where discovered in the Linux kernel’s UDF file system, which is used to mount some CD-ROMs and DVDs. An unprivileged local user could use these flaws to crash the system. (CVE-2012-3400)

Update instructions

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

Ubuntu 10.04 LTS
linux-image-2.6.32-42-386 - 2.6.32-42.96
linux-image-2.6.32-42-generic - 2.6.32-42.96
linux-image-2.6.32-42-generic-pae - 2.6.32-42.96
linux-image-2.6.32-42-ia64 - 2.6.32-42.96
linux-image-2.6.32-42-lpia - 2.6.32-42.96
linux-image-2.6.32-42-powerpc - 2.6.32-42.96
linux-image-2.6.32-42-powerpc-smp - 2.6.32-42.96
linux-image-2.6.32-42-powerpc64-smp - 2.6.32-42.96
linux-image-2.6.32-42-preempt - 2.6.32-42.96
linux-image-2.6.32-42-server - 2.6.32-42.96
linux-image-2.6.32-42-sparc64 - 2.6.32-42.96
linux-image-2.6.32-42-sparc64-smp - 2.6.32-42.96
linux-image-2.6.32-42-versatile - 2.6.32-42.96
linux-image-2.6.32-42-virtual - 2.6.32-42.96

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