CVE-2023-33551 Memory corruption in n/a

High 7.8 Published Updated

Remote attackers can execute arbitrary code via a crafted erofs filesystem image due to a heap buffer overflow in erofs-utils.

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
Available

What is CVE-2023-33551?

CVE-2023-33551 is a high-severity memory corruption vulnerability in n/a, published on 1 Jun 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

Heap Buffer Overflow in the erofsfsck_dirent_iter function in fsck/main.c in erofs-utils v1.6 allows remote attackers to execute arbitrary code via a crafted erofs filesystem image.

Weakness: CWE-787

Which versions are affected by CVE-2023-33551?

It affects 1 product.

Linux distribution packages (1)
erofs-utils openSUSE:TumbleweedAll versions1.7-1.1

Products include Erofs-Utils Project Erofs-Utils.

How do I fix CVE-2023-33551?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-33551 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33551 exists.

Sources

Also known as DEBIAN-CVE-2023-33551, GHSA-2f78-w4rr-cmhf, UBUNTU-CVE-2023-33551, openSUSE-SU-2024:13318-1.

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