OpenLinux: Key validity bug in GnuPG 1.2.1 and earlier
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SCO Security Advisory
Subject: OpenLinux: Key validity bug in GnuPG 1.2.1 and earlier
Advisory number: CSSA-2003-034.0
Issue date: 2003 November 17
Cross reference: sr883602 fz528211 erg712405 CAN-2003-0255
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1. Problem Description
As part of the development of GnuPG 1.2.2, a bug was
discovered in the key validation code. This bug causes keys
with more than one user ID to give all user IDs on the key
the amount of validity given to the most-valid key.
CAN-2003-0255 The key validation code in GnuPG before 1.2.2
does not properly determine the validity of keys with
multiple user IDs and assigns the greatest validity of the
most valid user ID, which prevents GnuPG from warning the
encrypting user when a user ID does not have a trusted path.
The Common Vulnerabilities and Exposures (CVE) project has
assigned the name CAN-2003-0255 to this issue. This is a
candidate for inclusion in the CVE list (http://cve.mitre.org),
which standardizes names for security problems.
2. Vulnerable Supported Versions
System Package
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OpenLinux 3.1.1 Server prior to gnupg-1.2.2-1.i386.rpm
OpenLinux 3.1.1 Workstation prior to gnupg-1.2.2-1.i386.rpm
3. Solution
The proper solution is to install the latest packages. Many
customers find it easier to use the Caldera System Updater, called
cupdate (or kcupdate under the KDE environment), to update these
packages rather than downloading and installing them by hand.
4. OpenLinux 3.1.1 Server
4.1 Package Location
ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2003-034.0/RPMS
4.2 Packages
d6da27be5c407641dc29f753d96e41fc gnupg-1.2.2-1.i386.rpm
4.3 Installation
rpm -Fvh gnupg-1.2.2-1.i386.rpm
4.4 Source Package Location
ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2003-034.0/SRPMS
4.5 Source Packages
b1ab55790186abd7997af751b3032721 gnupg-1.2.2-1.src.rpm
5. OpenLinux 3.1.1 Workstation
5.1 Package Location
ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-034.0/RPMS
5.2 Packages
5469dcefe0be50d4d99d4b925a58d453 gnupg-1.2.2-1.i386.rpm
5.3 Installation
rpm -Fvh gnupg-1.2.2-1.i386.rpm
5.4 Source Package Location
ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-034.0/SRPMS
5.5 Source Packages
be6338d319f84f139e8363f64bc6673a gnupg-1.2.2-1.src.rpm
6. References
Specific references for this advisory:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0255
SCO security resources:
http://www.sco.com/support/security/index.html
This security fix closes SCO incidents sr883602 fz528211
erg712405.
7. Disclaimer
SCO is not responsible for the misuse of any of the information
we provide on this website and/or through our security
advisories. Our advisories are a service to our customers intended
to promote secure installation and use of SCO products.
8. Acknowledgements
SCO would like to thank The GnuPG Team (David, Stefan, Timo and Werner)
______________________________________________________________________________
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Comment: For info see http://www.gnupg.org
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