USN-565-1: Squid vulnerability

9 January 2008

squid vulnerability

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

  • Ubuntu 7.10
  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description

  • squid


It was discovered that Squid did not always clean up cache memory correctly. A remote attacker could manipulate cache update replies and cause Squid to use all available memory, leading to a denial of service.

Update instructions

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

Ubuntu 7.10
squid - 2.6.14-1ubuntu2.1
Ubuntu 7.04
squid - 2.6.5-4ubuntu2.1
Ubuntu 6.10
squid - 2.6.1-3ubuntu1.5
Ubuntu 6.06 LTS
squid - 2.5.12-4ubuntu2.3

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the necessary changes.