CVE-2015-4493

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-08-16 · updated 2026-06-17
Weakness: CWE-119

Description

Heap-based buffer overflow in the stagefright::ESDS::parseESDescriptor function in libstagefright in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code via an invalid size field in an esds chunk in MPEG-4 video data, a related issue to CVE-2015-1539.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 15.04
Mozilla Firefox: through 39.0.3; 38.0, 38.0.1, 38.0.5, 38.1.0
Opensuse: 13.1, 13.2
Oracle Corporation Solaris Operating System: 11.3

References

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00030.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00031.html
http://rhn.redhat.com/errata/RHSA-2015-1586.html
http://www.debian.org/security/2015/dsa-3333
http://www.mozilla.org/security/announce/2015/mfsa2015-83.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.securitytracker.com/id/1033247
http://www.ubuntu.com/usn/USN-2702-1
http://www.ubuntu.com/usn/USN-2702-2
http://www.ubuntu.com/usn/USN-2702-3

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