Debian Security Advisory DSA-2566-1 firstname.lastname@example.org http://www.debian.org/security/ Nico Golde October 25, 2012 http://www.debian.org/security/faq
Package : exim4 Vulnerability : heap-based buffer overflow Problem type : remote Debian-specific: no CVE ID : CVE-2012-5671
It was discovered that Exim, a mail transport agent, is not properly handling the decoding of DNS records for DKIM. Specifically, crafted records can yield to a heap-based buffer overflow. An attacker can exploit this flaw to execute arbitrary code.
For the stable distribution (squeeze), this problem has been fixed in version 4.72-6+squeeze3.
For the testing distribution (wheezy), this problem has been fixed in version 4.80-5.1.
For the unstable distribution (sid), this problem has been fixed in version 4.80-5.1.
We recommend that you upgrade your exim4 packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/
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