Antoine Delignat-Lavaud from Inria discovered an issue in the way NSS (the Mozilla Network Security Service library, embedded in Wheezy's Icedove), was parsing ASN.1 data used in signatures, making it vulnerable to a signature forgery attack.

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Debian Security Advisory DSA-3037-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.debian.org/security/                         Yves-Alexis Perez
September 26, 2014                     http://www.debian.org/security/faq
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Package        : icedove
CVE ID         : CVE-2014-1568

Antoine Delignat-Lavaud from Inria discovered an issue in the way NSS (the
Mozilla Network Security Service library, embedded in Wheezy's Icedove),
was parsing ASN.1 data used in signatures, making it vulnerable to a
signature forgery attack.

An attacker could craft ASN.1 data to forge RSA certificates with a valid
certification chain to a trusted CA.

For the stable distribution (wheezy), this problem has been fixed in
version 24.8.1esr-1~deb7u1.

For the testing distribution (jessie) and unstable distribution (sid),
Icedove uses the system NSS library, handled in DSA 3033-1.

We recommend that you upgrade your icedove packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

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