Bug 800589 (CVE-2012-1131)

Summary: CVE-2012-1131 freetype: incorrect type cast allowing input sanity check bypass in ft_smooth_render_generic() (#35604)
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: behdad, fonts-bugs, jrusnack, kevin, mkasik
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2015-02-24 21:02:14 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 806266, 806267, 806268, 806269, 806270, 806271, 889398    
Bug Blocks: 800639    

Description Jan Lieskovsky 2012-03-06 18:49:38 UTC 
An out-of heap-based buffer read flaw was found in the way the anti-aliasing renderer of the FreeType font rendering engine processed certain TrueType fonts. A remote attacker could provide a specially-crafted TrueType font file, which once opened in an application linked against FreeType would lead to that application crash.

Upstream bug report:
[1] https://savannah.nongnu.org/bugs/?35604

Upstream patch:
[2] http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=fcbc82e69e7b114b0db75e955896107d611898e6

Acknowledgements:

Red Hat would like to thank Mateusz Jurczyk of the Google Security Team for reporting this issue.
Comment 1 Kurt Seifried 2012-03-06 20:50:33 UTC 
Added CVE as per http://www.openwall.com/lists/oss-security/2012/03/06/16
Comment 2 Jan Lieskovsky 2012-03-14 17:50:41 UTC 
This issue does seem to affect the versions of the freetype package, as shipped with Red Hat Enterprise Linux 5 and 6.

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This issue did NOT affect the version of the freetype package, as shipped with Fedora release of 15.

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This issue affects the version of the freetype package, as shipped with Fedora release of 16.
Comment 9 errata-xmlrpc 2012-04-10 19:58:52 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:0467 https://rhn.redhat.com/errata/RHSA-2012-0467.html