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Security update for gpg


(Last modified: 10MAR2006)

solutions Security update for gpg SuSE Linux Maintenance Web (a78b647fae6fd03f11da9c538433f9c8)

Applies to

Package: gpg
Product(s): SUSE CORE 9 for x86
SUSE CORE 9 for Itanium Processor Family
SUSE CORE 9 for IBM S/390 31bit
SUSE CORE 9 for IBM zSeries 64bit
SUSE CORE 9 for AMD64 and Intel EM64T
SuSE Linux Desktop 1.0
SUSE LINUX Retail Solution 8
SuSE Linux School Server for i386
SuSE Linux Standard Server 8
SuSE Linux Enterprise Server 8 for x86
SuSE Linux Enterprise Server 8 for IPF
SuSE Linux Enterprise Server 8 for IBM iSeries and IBM pSeries
SuSE Linux Enterprise Server 8 for IBM S/390 and IBM zSeries
SuSE Linux Enterprise Server 8 for IBM zSeries
SuSE Linux Enterprise Server 8 for AMD64
Novell Linux Desktop 9 for x86
Novell Linux Desktop 9 for x86_64
Novell Linux POS 9
Open Enterprise Server
SuSE Linux Openexchange Server 4
Patch: patch-10908
Release: 20060310
Obsoletes: none


Install this update.



Problem description

The GNU Privacy Guard (GPG) allows crafting a message which could check out correct using "--verify", but would extract a different, potentially malicious content when using "-o --batch".
The reason for this is that a .gpg or .asc file can contain multiple plaintext and signature streams and the handling of this stream is only possible when correctly following the gpg state.
The gpg "--verify" option has been changed to be way more strict than before and fail on files with multiple signatures/blocks to mitigate the problem of doing --verify and then -o extraction.
This problem could be used by an attacker to remotely execute code by using handcrafted YaST Online Patch files put onto a compromised YOU mirror server and waiting for the user to run YOU.
This problem is tracked by the Mitre CVE ID CVE-2006-0049.


Please install the updates provided at the location noted below.

Installation notes

This update is provided as an RPM package that can easily be installed onto a running system by using this command:
rpm -Fvh gpg.rpm

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.


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