CVE-2020-21531 Memory corruption in n/a
A global buffer overflow in fig2dev allows attackers to execute arbitrary code or cause denial of service via crafted input.
- 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-2020-21531?
CVE-2020-21531 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 16 Sep 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
fig2dev 3.2.7b contains a global buffer overflow in the conv_pattern_index function in gencgm.c.
Weakness: CWE-120
Which versions are affected by CVE-2020-21531?
It affects 2 products.
Products include Debian Debian Linux, Xfig Project Fig2dev.
How do I fix CVE-2020-21531?
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-2020-21531 being exploited?
There is no known exploitation of CVE-2020-21531 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-21531, GHSA-mv9x-j8g5-2pwp, UBUNTU-CVE-2020-21531.