Bug 185345

Summary:	CVE-2006-0049 Gnupg incorrect malformed message verification
Product:	Red Hat Enterprise Linux 2.1	Reporter:	Nalin Dahyabhai <nalin>
Component:	gnupg	Assignee:	Nalin Dahyabhai <nalin>
Status:	CLOSED ERRATA	QA Contact:	Mike McLean <mikem>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	2.1	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	source=vendorsec,reported=20060305,public=20060309,impact=moderate
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-03-15 17:32:15 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:	184556
Bug Blocks:

Description Nalin Dahyabhai 2006-03-13 21:38:49 UTC

+++ This bug was initially created as a clone of Bug #184556 +++

Gnupg incorrect malformed message verification

Tavis Ormandy discovered that it is still possible to trick gnupg into
incorrectly verifying a signed message.

The patch is here:
ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-1.4.2.1-1.4.2.2.diff.bz2


This issue also affects RHEL3
This issue also affects RHEL2.1

-- Additional comment from bressers on 2006-03-13 09:56 EST --
Created an attachment (id=126039)
Demo reproducer

This reproducer was given to us by Gentoo.

In order to reproduce this issue on RHEL, the --ignore-crc-error option must be
given to gpg.  This also mitigates the usefullness of this issue on RHEL.