CVE-2023-1945 Memory corruption in Firefox ESR
Unexpected Safe Browsing API data causes memory corruption in Thunderbird and Firefox ESR, potentially allowing code execution or crashes.
- 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-2023-1945?
CVE-2023-1945 is a medium-severity memory corruption vulnerability in Mozilla Firefox Esr, published on 2 Jun 2023. 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
Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 102.10 and Firefox ESR < 102.10.
Weakness: CWE-787
Which versions are affected by CVE-2023-1945?
It affects 2 products.
Products include Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2023-1945?
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-2023-1945 being exploited?
There is no known exploitation of CVE-2023-1945 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox Esr
Sources
Also known as DEBIAN-CVE-2023-1945, GHSA-f6gx-7fq3-c6p8, OESA-2024-2274, UBUNTU-CVE-2023-1945.