CVE-2020-23910 Memory corruption in n/a

Medium 5.5 Published 18 Jul 2023 Updated 28 Oct 2024

A stack-based buffer overflow in asn1c 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: None listed

What is CVE-2020-23910?

CVE-2020-23910 is a medium-severity memory corruption vulnerability in n/a, published on 18 Jul 2023. 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

Stack-based buffer overflow vulnerability in asn1c through v0.9.28 via function genhash_get in genhash.c.

Weakness: CWE-787

Which versions are affected by CVE-2020-23910?

It affects 1 product.

Products include Asn1c Project Asn1c.

How do I fix CVE-2020-23910?

No fix has been published for CVE-2020-23910 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-23910 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-23910 exists.

Sources

Also known as DEBIAN-CVE-2020-23910, GHSA-8jqj-cr86-2fwf, UBUNTU-CVE-2020-23910.