Arch Linux Security Advisory ASA-202107-14
==========================================

Severity: Medium
Date    : 2021-07-06
CVE-ID  : CVE-2021-3598
Package : openexr
Type    : arbitrary code execution
Remote  : Yes
Link    : https://security.archlinux.org/AVG-2071

Summary
=======

The package openexr before version 3.0.5-1 is vulnerable to arbitrary
code execution.

Resolution
==========

Upgrade to 3.0.5-1.

# pacman -Syu "openexr>=3.0.5-1"

The problem has been fixed upstream in version 3.0.5.

Workaround
==========

None.

Description
===========

A heap-buffer overflow was found in the readChars function of OpenEXR
before version 3.0.5. An attacker could use this flaw to execute
arbitrary code with the permissions of the user running the application
compiled against OpenEXR.

Impact
======

An attacker could execute arbitrary code through a crafted EXR image
file.

References
==========

https://bugzilla.redhat.com/show_bug.cgi?id=1970987
https://github.com/AcademySoftwareFoundation/openexr/issues/1033
https://github.com/AcademySoftwareFoundation/openexr/pull/1037
https://github.com/AcademySoftwareFoundation/openexr/commit/b054116e57ebf62739a17217f922359b174d1332
https://security.archlinux.org/CVE-2021-3598