CVE-2023-33802 Memory corruption in n/a

Medium 5.5 Published Updated

Attackers can cause a denial of service in SumatraPDF Reader by tricking users into opening a crafted text file.

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-2023-33802?

CVE-2023-33802 is a medium-severity memory corruption vulnerability in n/a, published on 26 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

A buffer overflow in SumatraPDF Reader v3.4.6 allows attackers to cause a Denial of Service (DoS) via a crafted text file.

Weakness: CWE-120

Which versions are affected by CVE-2023-33802?

It affects 1 product.

Products include Sumatrapdfreader Sumatrapdf.

How do I fix CVE-2023-33802?

No fix has been published for CVE-2023-33802 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-2023-33802 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33802 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-mhq9-63xw-5x49.

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