critical
9.3
CWE
119
Advisory Published
CVE Published
Updated

CVE-2012-1135: Buffer Overflow

First published: Tue Mar 06 2012(Updated: )

An out-of heap-based buffer read flaw was found in the way TrueType bytecode / opcode interpreter of the FreeType font rendering engine performed execution of NPUSHB and NPUSHW instructions. A remote attacker could provide a specially-crafted font file, which once opened in an application linked against FreeType would lead to that application crash. Upstream bug report: [1] <a href="https://savannah.nongnu.org/bugs/?35640">https://savannah.nongnu.org/bugs/?35640</a> Upstream patch: [2] <a href="http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=5dddcc45a03b336860436a180aec5b358517336b">http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=5dddcc45a03b336860436a180aec5b358517336b</a> Acknowledgements: Red Hat would like to thank Mateusz Jurczyk of the Google Security Team for reporting this issue.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
FreeType<=2.4.8
FreeType=1.3.1
FreeType=2.0.0
FreeType=2.0.1
FreeType=2.0.2
FreeType=2.0.3
FreeType=2.0.4
FreeType=2.0.5
FreeType=2.0.6
FreeType=2.0.7
FreeType=2.0.8
FreeType=2.0.9
FreeType=2.1
FreeType=2.1.3
FreeType=2.1.4
FreeType=2.1.5
FreeType=2.1.6
FreeType=2.1.7
FreeType=2.1.8
FreeType=2.1.8-rc1
FreeType=2.1.9
FreeType=2.1.10
FreeType=2.2.0
FreeType=2.2.1
FreeType=2.3.0
FreeType=2.3.1
FreeType=2.3.2
FreeType=2.3.3
FreeType=2.3.4
FreeType=2.3.5
FreeType=2.3.6
FreeType=2.3.7
FreeType=2.3.8
FreeType=2.3.9
FreeType=2.3.10
FreeType=2.3.11
FreeType=2.3.12
FreeType=2.4.0
FreeType=2.4.1
FreeType=2.4.2
FreeType=2.4.3
FreeType=2.4.4
FreeType=2.4.5
FreeType=2.4.6
FreeType=2.4.7
Mozilla Firefox<=10.0.3
Mozilla Firefox=1.0
Mozilla Firefox=4.0
Mozilla Firefox=4.0-beta1
Mozilla Firefox=4.0-beta2
Mozilla Firefox=4.0-beta3
Mozilla Firefox=4.0-beta4
Mozilla Firefox=5.0
Mozilla Firefox=6.0
Mozilla Firefox=6.0.1
Mozilla Firefox=6.0.2
Mozilla Firefox=7.0
Mozilla Firefox=8.0
Mozilla Firefox=9.0
Mozilla Firefox=10.0
Mozilla Firefox=10.0.1
Mozilla Firefox=10.0.2

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-1135?

    CVE-2012-1135 has a medium severity rating due to its potential for exploitation through specially-crafted font files.

  • How do I fix CVE-2012-1135?

    To fix CVE-2012-1135, update to a patched version of FreeType that addresses the flaw.

  • What are the affected versions of FreeType in CVE-2012-1135?

    CVE-2012-1135 affects FreeType versions up to 2.4.8 and specific older versions down to 1.3.1.

  • Can CVE-2012-1135 be exploited remotely?

    Yes, CVE-2012-1135 can be exploited remotely if a user opens a malicious font file in an application using the affected FreeType library.

  • What applications are vulnerable due to CVE-2012-1135?

    Applications using vulnerable versions of the FreeType library, such as certain versions of Mozilla Firefox Mobile, may be at risk from CVE-2012-1135.

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