CVE-2022-1196 Use after free in Firefox ESR
A use-after-free vulnerability in Thunderbird and Firefox ESR allows attackers to cause a crash or potentially execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-1196?
CVE-2022-1196 is a medium-severity use after free vulnerability in Mozilla Firefox Esr, published on 22 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
After a VR Process is destroyed, a reference to it may have been retained and used, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird < 91.8 and Firefox ESR < 91.8.
Weakness: CWE-416
Which versions are affected by CVE-2022-1196?
It affects 2 products.
Products include Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2022-1196?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2022-1196 being exploited?
There is no known exploitation of CVE-2022-1196 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox Esr
Sources
Also known as DEBIAN-CVE-2022-1196, GHSA-4rpw-8wx9-fp4x, UBUNTU-CVE-2022-1196.