What is Adobe Media Encoder vulnerability CVE-2021-43759?

Adobe Media Encoder vulnerability CVE-2021-43759 is an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory.

How does Adobe Media Encoder vulnerability CVE-2021-43759 affect the ASLR mitigations?

Adobe Media Encoder vulnerability CVE-2021-43759 could bypass ASLR mitigations.

What software versions are affected by Adobe Media Encoder vulnerability CVE-2021-43759?

Adobe Media Encoder versions 22.0, 15.4.2 (and earlier) are affected by the CVE-2021-43759 vulnerability.

What is the severity of Adobe Media Encoder vulnerability CVE-2021-43759?

The severity of Adobe Media Encoder vulnerability CVE-2021-43759 is medium with a severity value of 5.5.

How can I fix Adobe Media Encoder vulnerability CVE-2021-43759?

To fix Adobe Media Encoder vulnerability CVE-2021-43759, update Adobe Media Encoder to version 15.4.3 or later.

Vulnerability/
CVE-2021-43759

medium

5.5

CWE

125

12/7/2023

4/8/2024

CVE-2021-43759: Adobe Media Encoder MP4 File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

First published: Wed Jul 12 2023(Updated: )

Adobe Media Encoder versions 22.0, 15.4.2 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious MP4 file.

Credit: psirt@adobe.com psirt@adobe.com

Affected Software	Affected Version	How to fix
Adobe Media Encoder	<15.4.3
Adobe Media Encoder	=22.0
Apple macOS
Microsoft Windows

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Reference Links

https://helpx.adobe.com/security/products/media-encoder/apsb21-118.html

Frequently Asked Questions

What is Adobe Media Encoder vulnerability CVE-2021-43759?
Adobe Media Encoder vulnerability CVE-2021-43759 is an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory.
How does Adobe Media Encoder vulnerability CVE-2021-43759 affect the ASLR mitigations?
Adobe Media Encoder vulnerability CVE-2021-43759 could bypass ASLR mitigations.
What software versions are affected by Adobe Media Encoder vulnerability CVE-2021-43759?
Adobe Media Encoder versions 22.0, 15.4.2 (and earlier) are affected by the CVE-2021-43759 vulnerability.
What is the severity of Adobe Media Encoder vulnerability CVE-2021-43759?
The severity of Adobe Media Encoder vulnerability CVE-2021-43759 is medium with a severity value of 5.5.
How can I fix Adobe Media Encoder vulnerability CVE-2021-43759?
To fix Adobe Media Encoder vulnerability CVE-2021-43759, update Adobe Media Encoder to version 15.4.3 or later.

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