Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2011.0508
exim4 security update
9 May 2011
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AusCERT Security Bulletin Summary
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Product: exim4
Publisher: Debian
Operating System: Debian GNU/Linux 6
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2011-1764
Original Bulletin:
http://www.debian.org/security/2010/dsa-2232
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running exim4 check for an updated version of the software for their
operating system.
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Debian Security Advisory DSA-2232-1 security@debian.org
http://www.debian.org/security/ Florian Weimer
May 06, 2011 http://www.debian.org/security/faq
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Package : exim4
Vulnerability : format string vulnerability
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-1764
Debian Bug : 624670
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.
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/
Mailing list: debian-security-announce@lists.debian.org
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