Bug#1014577: libsdl1.2: CVE-2021-33657

[Moritz Mühlenhoff]

Source: libsdl1.2
X-Debbugs-CC: team at security.debian.org
Severity: important
Tags: security

Hi,

The following vulnerability was published for libsdl1.2.

CVE-2021-33657[0]:
| 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.

This fixed in SDL2 in
https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9 (release-2.0.20)

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2021-33657
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33657

Please adjust the affected versions in the BTS as needed.