USN-2080-1: Memcached vulnerabilities

Ubuntu Security Notice USN-2080-1

13th January, 2014

memcached vulnerabilities

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

  • Ubuntu 13.10
  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS

Summary

Several security issues were fixed in Memcached.

Software description

  • memcached - A high-performance memory object caching system

Details

Stefan Bucur discovered that Memcached incorrectly handled certain large
body lengths. A remote attacker could use this issue to cause Memcached to
crash, resulting in a denial of service. (CVE-2011-4971)

Jeremy Sowden discovered that Memcached incorrectly handled logging certain
details when the -vv option was used. An attacker could use this issue to
cause Memcached to crash, resulting in a denial of service. (CVE-2013-0179)

It was discovered that Memcached incorrectly handled SASL authentication.
A remote attacker could use this issue to bypass SASL authentication
completely. This issue only affected Ubuntu 12.10, Ubuntu 13.04 and Ubuntu
13.10. (CVE-2013-7239)

Update instructions

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

Ubuntu 13.10:
memcached 1.4.14-0ubuntu4.1
Ubuntu 13.04:
memcached 1.4.14-0ubuntu1.13.04.1
Ubuntu 12.10:
memcached 1.4.14-0ubuntu1.12.10.1
Ubuntu 12.04 LTS:
memcached 1.4.13-0ubuntu2.1

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

In general, a standard system update will make all the necessary changes.

References

CVE-2011-4971, CVE-2013-0179, CVE-2013-7239