CVE-2021-43018 Adobe Photoshop JPEG2000 Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

High 7.8 Published Updated

An out-of-bounds write in Adobe Photoshop allows arbitrary code execution when a user opens a malicious JPEG2000 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-2021-43018?

CVE-2021-43018 is a high-severity memory corruption vulnerability in Adobe Photoshop, published on 7 Sep 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

Adobe Photoshop versions 23.0.2 and 22.5.4 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious JPG file.

Weakness: CWE-787

Which versions are affected by CVE-2021-43018?

It affects 1 product.

Products include Adobe Photoshop.

How do I fix CVE-2021-43018?

No fix has been published for CVE-2021-43018 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-2021-43018 being exploited?

There is no known exploitation of CVE-2021-43018 in the wild and no public exploit code.

All Adobe Photoshop vulnerabilities

Sources

Also known as GHSA-7r4m-c228-wp37.

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