# CVE-2021-33657: libsdl1.2: There is a heap overflow problem in video/SDL_pixels.c in SDL (Simple DirectMedia Layer) 2.x to 2.0.18 versions

CVE-2021-33657 is fixed in 3 products on 1 platform, first by libsdl1.2debian 1.2.15+dfsg2-0.1ubuntu0.2, released April 1, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-33657
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0206
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 1, 2022

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libsdl1.2 Debian 12.15 (bookworm) | 1.2.15+dfsg2-7 | [DEBIAN-CVE-2021-33657](https://patchblox.com/security/data/fix/linux/debian-cve-2021-33657.md) | Apr 1, 2022 |
| Linux | libsdl1.2debian Ubuntu 18.04.6 LTS (bionic) | 1.2.15+dfsg2-0.1ubuntu0.2 | [libsdl1.2debian 1.2.15+dfsg2-0.1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsdl1.2debian-1.2.15-dfsg2-0.1ubuntu0.2.md) | Apr 1, 2022 |
| Linux | libsdl2 Debian 12.15 (bookworm) | 2.0.20+dfsg-2 | [DEBIAN-CVE-2021-33657](https://patchblox.com/security/data/fix/linux/debian-cve-2021-33657.md) | Apr 1, 2022 |
| Linux | libsdl2 Debian 13.5 (trixie) | 2.0.20+dfsg-2 | [DEBIAN-CVE-2021-33657](https://patchblox.com/security/data/fix/linux/debian-cve-2021-33657.md) | Apr 1, 2022 |
| Linux | libsdl2 Debian 14 | 2.0.20+dfsg-2 | [DEBIAN-CVE-2021-33657](https://patchblox.com/security/data/fix/linux/debian-cve-2021-33657.md) | Apr 1, 2022 |

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