CVE-2020-18652 Memory corruption in n/a

Medium 6.5 Published 22 Aug 2023 Updated 4 Oct 2024

Remote attackers can cause a denial of service by tricking users into opening a crafted WebP file using the Exempi library.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2020-18652?

CVE-2020-18652 is a medium-severity memory corruption vulnerability in n/a, published on 22 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Buffer Overflow vulnerability in WEBP_Support.cpp in exempi 2.5.0 and earlier allows remote attackers to cause a denial of service via opening of crafted webp file.

Weakness: CWE-787

Which versions are affected by CVE-2020-18652?

It affects 1 product.

Linux distribution packages (4)

`exempi` SUSE:Linux Enterprise Module for Desktop Applications 15 SP4	All versions	`2.4.5-150000.3.6.1`
`exempi` SUSE:Linux Enterprise Module for Desktop Applications 15 SP5	All versions	`2.4.5-150000.3.6.1`
`exempi` openSUSE:Leap 15.4	All versions	`2.4.5-150000.3.6.1`
`exempi` openSUSE:Leap 15.5	All versions	`2.4.5-150000.3.6.1`

Products include Exempi Project Exempi.

How do I fix CVE-2020-18652?

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-2020-18652 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-18652 exists.

Sources

Also known as DEBIAN-CVE-2020-18652, GHSA-fm7g-gm7p-w792, SUSE-SU-2023:3518-1, UBUNTU-CVE-2020-18652.