CVE-2023-37836 Denial of service in n/a

Medium 6.5 Published 13 Jul 2023 Updated 30 Oct 2024

Attackers can cause a denial of service via a crafted file due to a reachable assertion in libjpeg.

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-2023-37836?

CVE-2023-37836 is a medium-severity denial of service vulnerability in n/a, published on 13 Jul 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

libjpeg commit db33a6e was discovered to contain a reachable assertion via BitMapHook::BitMapHook at bitmaphook.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.

Weakness: CWE-617

Which versions are affected by CVE-2023-37836?

It affects 1 product.

Products include Jpeg Libjpeg.

How do I fix CVE-2023-37836?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-37836 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37836 exists.

Sources

Also known as DEBIAN-CVE-2023-37836, GHSA-f8c8-333m-6m26, UBUNTU-CVE-2023-37836.