CVE-2021-45911 Memory corruption in n/a
A heap-based buffer overflow in gif2apng allows attackers to write outside buffer boundaries, potentially leading to code execution or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-45911?
CVE-2021-45911 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 28 Dec 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow in the main function. It allows an attacker to write 2 bytes outside the boundaries of the buffer.
Weakness: CWE-787
Which versions are affected by CVE-2021-45911?
It affects 2 products.
Products include Debian Debian Linux, Gif2apng Project Gif2apng.
How do I fix CVE-2021-45911?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-45911 being exploited?
There is no known exploitation of CVE-2021-45911 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2021-45911, GHSA-2pj8-x98c-rm2q, UBUNTU-CVE-2021-45911.