USN-662-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-662-1

5th November, 2008

linux vulnerability

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

  • Ubuntu 8.10

Software description

  • linux

Details

It was discovered that the Linux kernel could be made to hang temporarily
when mounting corrupted ext2/3 filesystems. If a user were tricked into
mounting a specially crafted filesystem, a remote attacker could cause
system hangs, leading to a denial of service. (CVE-2008-3528)

Anders Kaseorg discovered that ndiswrapper did not correctly handle long
ESSIDs. For a system using ndiswrapper, a physically near-by attacker
could generate specially crafted wireless network traffic and execute
arbitrary code with root privileges. (CVE-2008-4395)

Update instructions

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

Ubuntu 8.10:
linux-image-2.6.27-7-virtual 2.6.27-7.16
linux-image-2.6.27-7-generic 2.6.27-7.16
linux-image-2.6.27-7-server 2.6.27-7.16

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

After a standard system upgrade you need to reboot your computer to
effect the necessary changes.

References

CVE-2008-3528, CVE-2008-4395