Multiple vulnerabilities have been found in memcached, a high-performance memory object caching system. The Common Vulnerabilities and Exposures project identifies the following issues: CVE-2011-4971 Stefan Bucur reported that memcached could be caused to crash by sending a specially crafted packet. CVE-2013-7239 It was reported that SASL authentication could be bypassed due to a flaw related to the managment of the SASL authentication state. With a specially crafted request, a remote attacker may be able to authenticate with invalid SASL credentials.

For the oldstable distribution (squeeze), these problems have been fixed in version 1.4.5-1+deb6u1. Note that the patch for CVE-2013-7239 was not applied for the oldstable distribution as SASL support is not enabled in this version. This update also provides the fix for CVE-2013-0179 which was fixed for stable already. For the stable distribution (wheezy), these problems have been fixed in version 1.4.13-0.2+deb7u1. For the unstable distribution (sid), these problems will be fixed soon. We recommend that you upgrade your memcached packages.

Danga Interactive developed memcached to enhance the speed of LiveJournal.com, a site which was already doing 20 million+ dynamic page views per day for 1 million users with a bunch of webservers and a bunch of database servers. memcached dropped the database load to almost nothing, yielding faster page load times for users, better resource utilization, and faster access to the databases on a memcache miss.

memcached on Debian Linux

This check tests the installed software version using the apt package manager.

• http://www.debian.org/security/2014/dsa-2832.html

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Updated on 2015-03-25