What is CVE-2021-33657?

CVE-2021-33657 is a heap overflow vulnerability in the video/SDL_pixels.c file in SDL (Simple DirectMedia Layer) 2.x to 2.0.18 versions.

How does CVE-2021-33657 affect software?

CVE-2021-33657 can cause the application using SDL 2.x to 2.0.18 to crash, experience denial of service, or allow for code execution when a malicious .BMP file is crafted.

What is the severity of CVE-2021-33657?

CVE-2021-33657 has a severity rating of 8.8 (high).

How can I fix CVE-2021-33657?

To fix CVE-2021-33657, you should update the SDL library to version 2.0.19 or later.

Are there any references related to CVE-2021-33657?

Yes, you can find more information about CVE-2021-33657 at the following references: 1. [GitHub Commit](https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9) 2. [Debian LTS Announcement](https://lists.debian.org/debian-lts-announce/2023/02/msg00008.html) 3. [Gentoo Security Advisory](https://security.gentoo.org/glsa/202305-17)

Vulnerability/
CVE-2021-33657

high

8.8

CWE

787

1/4/2022

3/8/2024

CVE-2021-33657

First published: Fri Apr 01 2022(Updated: )

There is a heap overflow problem in video/SDL_pixels.c in SDL (Simple DirectMedia Layer) 2.x to 2.0.18 versions. By crafting a malicious .BMP file, an attacker can cause the application using this library to crash, denial of service or Code execution.

Credit: securities@openeuler.org

Affected Software	Affected Version	How to fix
Libsdl Simple Directmedia Layer	>=2.0.0<=2.0.18

Remedy

https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is CVE-2021-33657?
CVE-2021-33657 is a heap overflow vulnerability in the video/SDL_pixels.c file in SDL (Simple DirectMedia Layer) 2.x to 2.0.18 versions.
How does CVE-2021-33657 affect software?
CVE-2021-33657 can cause the application using SDL 2.x to 2.0.18 to crash, experience denial of service, or allow for code execution when a malicious .BMP file is crafted.
What is the severity of CVE-2021-33657?
CVE-2021-33657 has a severity rating of 8.8 (high).
How can I fix CVE-2021-33657?
To fix CVE-2021-33657, you should update the SDL library to version 2.0.19 or later.
Are there any references related to CVE-2021-33657?
Yes, you can find more information about CVE-2021-33657 at the following references: 1. [GitHub Commit](https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9) 2. [Debian LTS Announcement](https://lists.debian.org/debian-lts-announce/2023/02/msg00008.html) 3. [Gentoo Security Advisory](https://security.gentoo.org/glsa/202305-17)

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version/libsdl simple directmedia layer/2.0.0
version/libsdl simple directmedia layer/2.0.18

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