TITLE:
GnuPG Unsigned Data Injection Detection Vulnerability

SECUNIA ADVISORY ID:
SA19173

VERIFY ADVISORY:
http://secunia.com/advisories/19173/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
GnuPG / gpg 1.0.x
http://secunia.com/product/2573/
GnuPG / gpg 1.2.x
http://secunia.com/product/309/
GnuPG / gpg 1.3.x
http://secunia.com/product/2591/
GnuPG / gpg 1.4.x
http://secunia.com/product/8087/

DESCRIPTION:
A vulnerability has been reported in GnuPG, which can be exploited by
malicious people to bypass certain security restrictions.

The vulnerability is caused due to an error in the detection of
unsigned data. This makes it possible to inject arbitrary data into a
signed message and affects the verification of non-detached signatures
and signatures embedded in encrypted messages.

The vulnerability affects all versions prior to 1.4.2.2. Version
1.9.x (development branch) is not affected unless the deprecated gpg
part has been enabled.

SOLUTION:
Update to version 1.4.2.2 or later.
http://www.gnupg.org/download/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Tavis Ormandy.

ORIGINAL ADVISORY:
http://lists.gnupg.org/pipermail/gnupg-announce/2006q1/000216.html

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About:
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