Bug 815022 – CVE-2012-0472 Mozilla: Potential memory corruption during font rendering using cairo-dwrite (MFSA 2012-25)

Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.

Bug 815022 - (CVE-2012-0472) CVE-2012-0472 Mozilla: Potential memory corruption during font rendering using cairo-dwrite (MFSA 2012-25)

Summary:	CVE-2012-0472 Mozilla: Potential memory corruption during font rendering usin...

Status:	CLOSED ERRATA

Aliases:	CVE-2012-0472

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	urgent Severity urgent
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=critical,public=20120424,repor...
Keywords:	Security

Depends On:
Blocks:	812268
	Show dependency tree / graph

Reported:	2012-04-22 02:36 EDT by Huzaifa S. Sidhpurwala
Modified:	2012-04-24 17:01 EDT (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2012-04-24 17:01:44 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2012:0515	normal	SHIPPED_LIVE	Critical: firefox security update	2012-04-24 19:55:38 EDT
Red Hat Product Errata	RHSA-2012:0516	normal	SHIPPED_LIVE	Critical: thunderbird security update	2012-04-24 19:44:08 EDT

Groups: None (edit)

Description Huzaifa S. Sidhpurwala 2012-04-22 02:36:32 EDT

Security research firm iDefense reported that researcher wushi of team509 discovered a memory corruption on Windows Vista and Windows 7 systems with hardware acceleration disabled or using incompatible video drivers. This is created by using cairo-dwrite to attempt to render fonts on an unsupported code path. This corruption causes a potentially exploitable crash on affected systems. 

This issue also seems to affect the linux version of firefox and thunderbird.

Reference:
http://www.mozilla.org/security/announce/2012/mfsa2012-25.html

Comment 1 Vincent Danen 2012-04-24 13:53:46 EDT

Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue.  Upstream acknowledges wushi of team509 via iDefense as the original reporter.

Comment 2 errata-xmlrpc 2012-04-24 15:46:32 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:0516 https://rhn.redhat.com/errata/RHSA-2012-0516.html

Comment 3 errata-xmlrpc 2012-04-24 15:58:47 EDT

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:0515 https://rhn.redhat.com/errata/RHSA-2012-0515.html

Note You need to log in before you can comment on or make changes to this bug.