medium
6.5
CWE
476
Advisory Published
Updated

CVE-2016-1523: Null Pointer Dereference

First published: Sat Feb 13 2016(Updated: )

The SillMap::readFace function in FeatureMap.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, mishandles a return value, which allows remote attackers to cause a denial of service (missing initialization, NULL pointer dereference, and application crash) via a crafted Graphite smart font.

Credit: cret@cert.org cret@cert.org

Affected SoftwareAffected VersionHow to fix
Fedora=22
Fedora=23
Firefox=38.0
Firefox=38.0.1
Firefox=38.0.5
Firefox=38.1.0
Firefox=38.1.1
Firefox=38.2.0
Firefox=38.2.1
Firefox=38.3.0
Firefox=38.4.0
Firefox=38.5.0
Firefox=38.5.1
Firefox=38.5.2
Firefox=38.6.0
Thunderbird<=38.5.1
Graphite2=1.2.4
Debian=7.0
Debian=8.0
Firefox ESR=38.0
Firefox ESR=38.0.1
Firefox ESR=38.0.5
Firefox ESR=38.1.0
Firefox ESR=38.1.1
Firefox ESR=38.2.0
Firefox ESR=38.2.1
Firefox ESR=38.3.0
Firefox ESR=38.4.0
Firefox ESR=38.5.0
Firefox ESR=38.5.1
Firefox ESR=38.5.2
Firefox ESR=38.6.0

Remedy

http://www.mozilla.org/security/announce/2016/mfsa2016-14.html

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-1523?

    CVE-2016-1523 has a medium severity level, causing denial of service due to a NULL pointer dereference.

  • How do I fix CVE-2016-1523?

    To fix CVE-2016-1523, update your affected application to a version that has patched this vulnerability.

  • Which versions are affected by CVE-2016-1523?

    CVE-2016-1523 affects Mozilla Firefox versions before 43.0, Firefox ESR versions before 38.6.1, and Graphite 2 version 1.2.4.

  • Can CVE-2016-1523 be exploited remotely?

    Yes, CVE-2016-1523 can be exploited remotely, allowing attackers to cause a denial of service.

  • What applications are impacted by CVE-2016-1523?

    CVE-2016-1523 impacts applications relying on the Libgraphite library and specific versions of Mozilla Firefox and Firefox ESR.

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