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>> GnuPG Duplicated User IDs Remote Memory Corruption Vulnerability

Title : GnuPG Duplicated User IDs Remote Memory Corruption Vulnerability
VUPEN ID : VUPEN/ADV-2008-1056
CVE ID : CVE-2008-1530
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-04-01


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 attackers to cause a denial of service or compromise an affected system. This issue is caused by a memory corruption error when importing keys with duplicated user IDs, which could be exploited by attackers to crash an affected application or execute arbitrary code by tricking a user into importing specially crafted keys.

Note: A NULL pointer dereference error, which occurs when importing certain keys from key servers, has also been reported.

Affected Products

GnuPG version 1.4.8
GnuPG version 2.0.8

Solution

Upgrade to GnuPG version 1.4.9 or 2.0.9 :
ftp://ftp.gnupg.org/gcrypt/

References

http://www.vupen.com/english/advisories/2008/1056
http://lists.gnupg.org/pipermail/gnupg-announce/2008q1/000272.html
https://bugs.g10code.com/gnupg/issue894
http://www.ocert.org/advisories/ocert-2008-1.html

Credits

Vulnerability reported by Andrea Barisani of (oCERT).

ChangeLog

2008-04-01 : Initial release

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