CVE-2020-23887 Memory corruption in n/a

Medium 5.5 Published 10 Nov 2021 Updated 4 Aug 2024

Attackers can cause a denial of service in XnView MP by tricking users into opening a crafted ICO file, leading to a heap overflow.

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-2020-23887?

CVE-2020-23887 is a medium-severity memory corruption vulnerability in n/a, published on 10 Nov 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

XnView MP v0.96.4 was discovered to contain a heap overflow which allows attackers to cause a denial of service (DoS) via a crafted ico file. Related to a Read Access Violation starting at USER32!SmartStretchDIBits+0x33.

Weakness: CWE-787

Which versions are affected by CVE-2020-23887?

It affects 1 product.

Products include Xnview Xnview Mp.

How do I fix CVE-2020-23887?

No fix has been published for CVE-2020-23887 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-2020-23887 being exploited?

There is no known exploitation of CVE-2020-23887 in the wild and no public exploit code.

Sources

Also known as GHSA-39jx-wm6w-j4rh.