Bug 230456

Summary: CVE-2007-1263 gnupg signed message spoofing
Product: Red Hat Enterprise Linux 4 Reporter: Josh Bressers <bressers>
Component: gnupgAssignee: Nalin Dahyabhai <nalin>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: medium    
Version: 4.0CC: security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=important,source=corelabs,reported=20070228,public=20070305
Fixed In Version: RHSA-2007-0106 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-03-06 09:23:47 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 430489    
Attachments:
Description Flags
Proposed patch none

Description Josh Bressers 2007-02-28 21:33:42 UTC 
CoreLabs has reported several flaws in the way gnupg verifies signed messages. 
It is possible to construct a message with injected content and it will appear
to be valid, signed content.

This flaw is most dangerous in the way many mail programs use gnupg to verify
signed and encrypted messages.
Comment 1 Josh Bressers 2007-02-28 21:34:14 UTC 
These flaws also affect RHEL2.1 and RHEL3
Comment 2 Josh Bressers 2007-02-28 21:35:50 UTC 
Created attachment 148963 [details]
Proposed patch
Comment 6 Mark J. Cox 2007-03-05 21:25:28 UTC 
now public at
http://www.coresecurity.com/index.php5?module=ContentMod&action=item&id=1687
removing embargo
Comment 7 Red Hat Bugzilla 2007-03-06 09:23:47 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2007-0106.html