Security Information / 2011 / Security Information -- DSA-2232-1 exim4

Debian Security Advisory

DSA-2232-1 exim4 -- format string vulnerability

Date Reported:

06 May 2011

Affected Packages:

exim4

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 624670.
In Mitre's CVE dictionary: CVE-2011-1764.

More information:

It was discovered that Exim, the default mail transport agent in Debian, uses DKIM data obtain from DNS directly in a format string, potentially allowing malicious mail senders to execute arbitrary code. (CVE-2011-1764)

The oldstable distribution (lenny) is not affected by this problem because it does not contain DKIM support.

For the stable distribution (squeeze), this problem has been fixed in version 4.72-6+squeeze1.

For the unstable distribution (sid), this problem has been fixed in version 4.75-3.

We recommend that you upgrade your exim4 packages.