CVE-2023-5168 Memory corruption in Firefox
A compromised content process can trigger an out-of-bounds write in a privileged process, potentially allowing code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-5168?
CVE-2023-5168 is a critical memory corruption vulnerability in Mozilla Firefox, published on 27 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A compromised content process could have provided malicious data to `FilterNodeD2D1` resulting in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
Weakness: CWE-787
Which versions are affected by CVE-2023-5168?
It affects 3 products.
Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2023-5168?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-5168 being exploited?
There is no known exploitation of CVE-2023-5168 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-jw9m-8h6f-3q76, UBUNTU-CVE-2023-5168.