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>> GnuPG OpenPGP Messages Processing Remote Function Pointer Overwrite Vulnerability

Title : GnuPG OpenPGP Messages Processing Remote Function Pointer Overwrite Vulnerability
VUPEN ID : VUPEN/ADV-2006-4881
CVE ID : CVE-2006-6235
Rated as : Critical 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2006-12-07


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format  Receive VUPEN Security notifications by SMS 

A vulnerability has been identified in GnuPG, which could be exploited by remote attackers to compromise a vulnerable server or cause a denial of service. This flaw is due to a memory corruption error when processing malformed OpenPGP packets, which could be exploited by remote attackers to execute arbitrary commands via a specially crafted message or file.

Affected Products

GnuPG versions prior to 1.4.6
GnuPG versions prior to 2.0.2

Solution

Upgrade to GnuPG version 1.4.6 or apply patches :
ftp://ftp.gnupg.org/gcrypt/gnupg

References

http://www.vupen.com/english/advisories/2006/4881
http://lists.gnupg.org/pipermail/gnupg-announce/2006q4/000246.html

Credits

Vulnerability reported by Tavis Ormandy (Gentoo security team)

ChangeLog

2006-12-07 : Initial release

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