CVE-2020-23851 Memory corruption in n/a

Medium 5.5 Published 18 May 2021 Updated 4 Aug 2024

A stack-based buffer overflow in the ffjpeg library allows attackers to cause a denial of service via a malicious JPEG image.

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-2020-23851?

CVE-2020-23851 is a medium-severity memory corruption vulnerability in n/a, published on 18 May 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 vulnerability exists in ffjpeg through 2020-07-02 in the jfif_decode(void *ctxt, BMP *pb) function at ffjpeg/src/jfif.c:513:28, which could cause a denial of service by submitting a malicious jpeg image.

Weakness: CWE-787

Which versions are affected by CVE-2020-23851?

It affects 1 product.

Products include Rockcarry Ffjpeg.

How do I fix CVE-2020-23851?

No fix has been published for CVE-2020-23851 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-2020-23851 being exploited?

There is no known exploitation of CVE-2020-23851 in the wild and no public exploit code.

Sources

Also known as GHSA-822w-mfcx-8jmm.