critical
9.3
CWE
119
Advisory Published
Updated

CVE-2016-2794: Buffer Overflow

First published: Sun Mar 13 2016(Updated: )

The graphite2::TtfUtil::CmapSubtable12NextCodepoint function in Graphite 2 before 1.3.6, as used in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7, allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted Graphite smart font.

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Firefox<=44.0.2
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=38.6.0
Firefox ESR=38.6.1
Graphite2<=1.3.5
SUSE Linux=42.1
SUSE Linux=13.1
SUSE Linux=13.2
SUSE Linux Enterprise Server=12.0
Oracle Linux=5.0
Oracle Linux=6
Oracle Linux=7
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=38.6.0
Firefox=38.6.1

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-2794?

    CVE-2016-2794 is classified as a denial of service vulnerability due to buffer over-read.

  • How do I fix CVE-2016-2794?

    To fix CVE-2016-2794, you should update Mozilla Firefox or Firefox ESR to versions that are patched, above 45.0 or 38.7 respectively.

  • Which versions are affected by CVE-2016-2794?

    CVE-2016-2794 affects Mozilla Firefox versions before 45.0 and Firefox ESR versions before 38.7.

  • Can CVE-2016-2794 be exploited remotely?

    Yes, CVE-2016-2794 can be exploited remotely by attackers using crafted Graphite files.

  • Is CVE-2016-2794 specific to a certain operating system?

    CVE-2016-2794 is associated with multiple operating systems as it affects versions of Mozilla Firefox and Graphite2 used across various platforms.

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