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CVE-2021-33657

Published: 1 April 2022

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.

Notes

AuthorNote
rodrigo-zaiden
The POC from the SDL issue link only reproduces in versions
2.0.16 and 2.0.18 because of the following commit
https://github.com/libsdl-org/SDL/commit/fed84650
In older versions of libsdl2 and also libsdl1.2, even though
the commit above is not present, I think that there might be a
slight chance to trick the lib with a special crafted input to
cause the heap overflow, and patching will not cause any harm.
Priority

Medium

CVSS 3 base score: 8.8

Status

Package Release Status
libsdl1.2
Launchpad, Ubuntu, Debian
bionic
Released (1.2.15+dfsg2-0.1ubuntu0.2)
focal Needed

impish Ignored
(reached end-of-life)
jammy Needed

kinetic Needed

trusty
Released (1.2.15-8ubuntu1.1+esm2)
upstream Needs triage

xenial
Released (1.2.15+dfsg1-3ubuntu0.1+esm1)
libsdl2
Launchpad, Ubuntu, Debian
bionic Needed

focal Needed

impish
Released (2.0.14+dfsg2-3ubuntu0.1)
jammy Not vulnerable
(2.0.20+dfsg-2)
kinetic Not vulnerable
(2.0.20+dfsg-2)
trusty Needed

upstream
Released (2.0.20)
xenial Ignored
(out of standard support)
Patches:
upstream: https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9