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

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...

Keywords:
Status:	CLOSED ERRATA
Alias:	CVE-2012-0472
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	urgent
Severity:	urgent
Target Milestone:	---
Assignee:	Red Hat Product Security
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:	812268
TreeView+	depends on / blocked

Reported:	2012-04-22 06:36 UTC by Huzaifa S. Sidhpurwala
Modified:	2023-05-12 12:03 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed:	2012-04-24 21:01:44 UTC
Embargoed:

Attachments	(Terms of Use)

Links
System	ID	Private	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2012:0515	0	normal	SHIPPED_LIVE	Critical: firefox security update	2012-04-24 23:55:38 UTC
Red Hat Product Errata	RHSA-2012:0516	0	normal	SHIPPED_LIVE	Critical: thunderbird security update	2012-04-24 23:44:08 UTC

Description Huzaifa S. Sidhpurwala 2012-04-22 06:36:32 UTC

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 17:53:46 UTC

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 19:46:32 UTC

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 19:58:47 UTC

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

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