USN-1379-1: Linux kernel vulnerabilities

28 February 2012

linux vulnerabilities

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

  • Ubuntu 10.10

Summary

Several security issues were fixed in the kernel.

Software Description

  • linux - Linux kernel

Details

Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel’s handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. (CVE-2011-1927)

A flaw was found in the Linux Ethernet bridge’s handling of IGMP (Internet Group Management Protocol) packets. An unprivileged local user could exploit this flaw to crash the system. (CVE-2011-0716)

A flaw was discovered in the Linux kernel’s AppArmor security interface when invalid information was written to it. An unprivileged local user could use this to cause a denial of service on the system. (CVE-2011-3619)

Update instructions

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

Ubuntu 10.10
linux-image-2.6.35-32-generic - 2.6.35-32.66
linux-image-2.6.35-32-generic-pae - 2.6.35-32.66
linux-image-2.6.35-32-omap - 2.6.35-32.66
linux-image-2.6.35-32-powerpc - 2.6.35-32.66
linux-image-2.6.35-32-powerpc-smp - 2.6.35-32.66
linux-image-2.6.35-32-powerpc64-smp - 2.6.35-32.66
linux-image-2.6.35-32-server - 2.6.35-32.66
linux-image-2.6.35-32-versatile - 2.6.35-32.66
linux-image-2.6.35-32-virtual - 2.6.35-32.66

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