CVE-2020-21676 Memory corruption in n/a
Attackers can cause denial of service via stack-based buffer overflow when converting xfig files to pstricks format using fig2dev.
- 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-2020-21676?
CVE-2020-21676 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 10 Aug 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
A stack-based buffer overflow in the genpstrx_text() component in genpstricks.c of fig2dev 3.2.7b allows attackers to cause a denial of service (DOS) via converting a xfig file into pstricks format.
Weakness: CWE-787
Which versions are affected by CVE-2020-21676?
It affects 2 products.
Products include Debian Debian Linux, Fig2dev Project Fig2dev.
How do I fix CVE-2020-21676?
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-2020-21676 being exploited?
There is no known exploitation of CVE-2020-21676 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-21676, GHSA-h7rp-ww8c-5x58, UBUNTU-CVE-2020-21676.