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exim4 security update needed for lenny-backports

Looks like lenny-backports is affected by this; Andreas, are you
in a position to fix?


----- Forwarded message from Florian Weimer <fw@deneb.enyo.de> -----

Date: Fri, 06 May 2011 21:41:25 +0200
From: Florian Weimer <fw@deneb.enyo.de>
To: debian-security-announce@lists.debian.org
Subject: [SECURITY] [DSA 2232-1] exim4 security update

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

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.

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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Archive: http://lists.debian.org/87k4e37h22.fsf@mid.deneb.enyo.de

----- End forwarded message -----

Dominic Hargreaves | http://www.larted.org.uk/~dom/
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