What’s Vulnerable › Vulnerabilities

CVE-2021-33657

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-04-01 · updated 2026-06-17
• Weakness: CWE-787

Description

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.

Affected products

• Libsdl Simple Directmedia Layer: from 2.0.0 through 2.0.18

References

• https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9
• https://lists.debian.org/debian-lts-announce/2023/02/msg00008.html
• https://security.gentoo.org/glsa/202305-17
• https://security.gentoo.org/glsa/202305-18
• https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9
• https://lists.debian.org/debian-lts-announce/2023/02/msg00008.html
• https://security.gentoo.org/glsa/202305-17
• https://security.gentoo.org/glsa/202305-18

Get alerted when CVE-2021-33657 or the next vulnerability affects your stack