GLSA Bodhisattva
Joined: 13 Jun 2003 Posts: 4087 Location: Dresden, Germany
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Posted: Thu Mar 24, 2005 10:06 pm Post subject: [ GLSA 200503-29 ] GnuPG: OpenPGP protocol attack |
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Gentoo Linux Security Advisory
Title: GnuPG: OpenPGP protocol attack (GLSA 200503-29)
Severity: low
Exploitable: remote
Date: March 24, 2005
Bug(s): #85547
ID: 200503-29
Synopsis
Automated systems using GnuPG may leak plaintext portions of an encrypted message.
Background
GnuPG is complete and free replacement for PGP, a tool for secure communication and data storage.
Affected Packages
Package: app-crypt/gnupg
Vulnerable: < 1.4.1
Unaffected: >= 1.4.1
Architectures: All supported architectures
Description
A flaw has been identified in an integrity checking mechanism of the OpenPGP protocol.
Impact
An automated system using GnuPG that allows an attacker to repeatedly discover the outcome of an integrity check (perhaps by observing the time required to return a response, or via overly verbose error messages) could theoretically reveal a small portion of plaintext.
Workaround
There is no known workaround at this time.
Resolution
All GnuPG users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/gnupg-1.4.1" |
References
CERT VU#303094
CAN-2005-0366
Last edited by GLSA on Sun May 07, 2006 4:55 pm; edited 1 time in total |
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