CVE-2016-5276: Use After Free
A use-after-free vulnerability triggered by setting a aria-owns attribute
Other sources
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.
— Launchpad
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2016-5276?
CVE-2016-5276 is a use-after-free vulnerability triggered by setting an aria-owns attribute.
How does CVE-2016-5276 affect Mozilla Firefox and Thunderbird?
CVE-2016-5276 affects Mozilla Firefox before version 49.0, Firefox ESR 45.x before version 45.4, and Thunderbird before version 45.4.
What is the severity of CVE-2016-5276?
CVE-2016-5276 has a severity level of critical with a score of 9.8.
How can CVE-2016-5276 be exploited?
CVE-2016-5276 can be exploited by remote attackers to execute arbitrary code or cause a denial of service through heap memory corruption.
Where can I find more information about CVE-2016-5276?
You can find more information about CVE-2016-5276 on the Mozilla Firefox bugzilla and security advisories pages.