Vulnerabilities / CVE-2016-5276

critical

CVE-2016-5276

Mozilla: Heap-use-after-free in mozilla::a11y::DocAccessible::ProcessInvalidationList (MFSA 2016-85, MFSA 2016-86)

Published Modified CWE 416
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, Oracle. Rated lower by Red Hat (high), Ubuntu (medium).

Description

Use-after-free vulnerability in the mozilla::a11y::DocAccessible::ProcessInvalidationList function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via an aria-owns attribute.

Affected packages and fixed versions

SourcePackageFixed in
Oracle Linux 5firefox45.4.0-1.0.1.el5_11
Oracle Linux 6firefox45.4.0-1.0.1.el6_8
Oracle Linux 7firefox45.4.0-1.0.1.el7_2
debian 11firefox-esr45.4.0esr-1
debian 12firefox-esr45.4.0esr-1
debian 13firefox-esr45.4.0esr-1
debian 14firefox-esr45.4.0esr-1
debian 7firefox-esr45.4.0esr-1~deb7u1
debian 8firefox-esr45.4.0esr-1~deb8u2
echofirefox-esr45.4.0esr-1
ubuntu 12.04firefox, thunderbird49.0+build4-0ubuntu0.12.04.1 and 1 more
ubuntu 14.04firefox, thunderbird49.0+build4-0ubuntu0.14.04.1 and 1 more
Show all 18 entries from 14 sources
SourcePackageFixed in
Oracle Linux 5firefox45.4.0-1.0.1.el5_11
Oracle Linux 6firefox45.4.0-1.0.1.el6_8
Oracle Linux 7firefox45.4.0-1.0.1.el7_2
debian 11firefox-esr45.4.0esr-1
debian 12firefox-esr45.4.0esr-1
debian 13firefox-esr45.4.0esr-1
debian 14firefox-esr45.4.0esr-1
debian 7firefox-esr45.4.0esr-1~deb7u1
debian 8firefox-esr45.4.0esr-1~deb8u2
echofirefox-esr45.4.0esr-1
ubuntu 12.04firefox49.0+build4-0ubuntu0.12.04.1
ubuntu 12.04thunderbird1:45.4.0+build1-0ubuntu0.12.04.1
ubuntu 14.04firefox49.0+build4-0ubuntu0.14.04.1
ubuntu 14.04thunderbird1:45.4.0+build1-0ubuntu0.14.04.1
ubuntu 16.04firefox49.0+build4-0ubuntu0.16.04.1
ubuntu 16.04thunderbird1:45.4.0+build1-0ubuntu0.16.04.1
ubuntu 16.10firefox49.0+build4-0ubuntu2
ubuntu 16.10thunderbird1:45.4.0+build1-0ubuntu0.16.10.1

References

All 19 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.