USN-901-1: Squid vulnerabilities

Ubuntu Security Notice USN-901-1

16th February, 2010

squid vulnerabilities

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

  • Ubuntu 9.10
  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS
  • Ubuntu 6.06 LTS

Software description

  • squid

Details

It was discovered that Squid incorrectly handled certain auth headers. A
remote attacker could exploit this with a specially-crafted auth header
and cause Squid to go into an infinite loop, resulting in a denial of
service. This issue only affected Ubuntu 8.10, 9.04 and 9.10.
(CVE-2009-2855)

It was discovered that Squid incorrectly handled certain DNS packets. A
remote attacker could exploit this with a specially-crafted DNS packet
and cause Squid to crash, resulting in a denial of service. (CVE-2010-0308)

Update instructions

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

Ubuntu 9.10:
squid 2.7.STABLE6-2ubuntu2.1
Ubuntu 9.04:
squid 2.7.STABLE3-4.1ubuntu1.1
Ubuntu 8.10:
squid 2.7.STABLE3-1ubuntu2.2
Ubuntu 8.04 LTS:
squid 2.6.18-1ubuntu3.1
Ubuntu 6.06 LTS:
squid 2.5.12-4ubuntu2.5

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

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

References

CVE-2009-2855, CVE-2010-0308