Arch Linux Security Advisory ASA-202103-26

Severity: Medium
Date : 2021-03-25
CVE-ID : CVE-2021-26825 CVE-2021-26826
Package : godot
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-1544

Summary

The package godot before version 3.2.3-2 is vulnerable to arbitrary
code execution.

Resolution

Upgrade to 3.2.3-2.

pacman -Syu “godot>=3.2.3-2”

The problems have been fixed upstream but no release is available yet.

Workaround

None.

Description

• CVE-2021-26825 (arbitrary code execution)

An integer overflow issue exists in Godot Engine version 3.2.3 that can
be triggered when loading specially crafted TGA image files. The
vulnerability exists in the ImageLoaderTGA::load_image() function in
the line “const size_t buffer_size = (tga_header.image_width *
tga_header.image_height) * pixel_size;” The bug leads to a dynamic
stack buffer overflow. Depending on the context of the application, the
attack vector can be local or remote, and can lead to code execution
and/or a system crash.

• CVE-2021-26826 (arbitrary code execution)

A stack overflow issue exists in Godot Engine version 3.2.3 and is
caused by improper boundary checks when loading TGA image files.
Depending on the context of the application, the attack vector can be
local or remote, and can lead to code execution and/or a system crash.

Impact

A remote attacker who is able to supply a crafted TGA file to a client
which subsequently gets loaded by the engine is able to execute
arbitrary code on the affected host.

References

https://bugs.archlinux.org/task/70057
https://github.com/godotengine/godot/pull/45702
https://github.com/godotengine/godot/commit/113b5ab1c45c01b8e6d54d13ac8876d091f883a8
https://security.archlinux.org/CVE-2021-26825
https://security.archlinux.org/CVE-2021-26826