Bug 184556 – CVE-2006-0049 Gnupg incorrect malformed message verification

Bug 184556 - CVE-2006-0049 Gnupg incorrect malformed message verification

Summary:	CVE-2006-0049 Gnupg incorrect malformed message verification

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 4
Classification:	Red Hat
Component:	gnupg (Show other bugs)
Sub Component:
Version:	4.0
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Nalin Dahyabhai
QA Contact:	Mike McLean
Docs Contact:

URL:
Whiteboard:	source=vendorsec,reported=20060305,pu...
Keywords:	Security

Depends On:
Blocks:	185345 185346
	Show dependency tree / graph

Reported:	2006-03-09 15:29 EST by Josh Bressers
Modified:	2007-11-30 17:07 EST (History)
CC List:	0 users

See Also:
Fixed In Version:	RHSA-2006-0266
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2006-03-15 11:32:04 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Demo reproducer (741 bytes, text/plain) 2006-03-13 09:56 EST, Josh Bressers	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Josh Bressers 2006-03-09 15:29:14 EST

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

Comment 1 Josh Bressers 2006-03-13 09:56:43 EST

Created attachment 126039 [details]
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.

Comment 5 Red Hat Bugzilla 2006-03-15 11:32:06 EST

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-2006-0266.html

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