CVE-2023-5728 Use after free in Firefox
A use-after-free vulnerability in Firefox and Thunderbird during garbage collection could allow attackers to execute arbitrary code or cause a crash.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-5728?
CVE-2023-5728 is a high-severity use after free vulnerability in Debian Debian Linux, published on 24 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
During garbage collection extra operations were performed on a object that should not be. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.
Weakness: CWE-416
Which versions are affected by CVE-2023-5728?
It affects 4 products.
Products include Debian Debian Linux, Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2023-5728?
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-2023-5728 being exploited?
There is no known exploitation of CVE-2023-5728 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2023-5728, GHSA-3qmg-867g-8xrq, UBUNTU-CVE-2023-5728.