It was discovered that the message header parser in the Dovecot mail server parsed NUL characters incorrectly, which could lead to denial of service through malformed mail headers.

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Debian Security Advisory DSA-2252-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.debian.org/security/                        Moritz Muehlenhoff
June 02, 2011                          http://www.debian.org/security/faq
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Package        : dovecot
Vulnerability  : programming error
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2011-1929 
Debian Bug     : 627443

It was discovered that the message header parser in the Dovecot mail 
server parsed NUL characters incorrectly, which could lead to denial
of service through malformed mail headers.


The oldstable distribution (lenny) is not affected.

For the stable distribution (squeeze), this problem has been fixed in
version 1.2.15-7.

For the unstable distribution (sid), this problem has been fixed in
version 2.0.13-1.

We recommend that you upgrade your dovecot 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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