USN-2080-1: Memcached vulnerabilities

Releases

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

Packages

• 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 versions:

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

• memcached - 1.4.13-0ubuntu2.1

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

References

• CVE-2011-4971
• CVE-2013-0179
• CVE-2013-7239