Bug 815022 - (CVE-2012-0472) CVE-2012-0472 Mozilla: Potential memory corruption during font rendering using cairo-dwrite (MFSA 2012-25)
CVE-2012-0472 Mozilla: Potential memory corruption during font rendering usin...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
urgent Severity urgent
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Assigned To: Red Hat Product Security
impact=critical,public=20120424,repor...
: Security
Depends On:
Blocks: 812268
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Reported: 2012-04-22 02:36 EDT by Huzaifa S. Sidhpurwala
Modified: 2012-04-24 17:01 EDT (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-04-24 17:01:44 EDT
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RHEL 7.3 requirements from Atomic Host:


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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

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