#VU60052 Heap-based buffer overflow in OpenEXR - CVE-2021-45942
Published: January 27, 2022
Vulnerability identifier: #VU60052
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-45942
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
OpenEXR
OpenEXR
Software vendor:
OpenEXR
OpenEXR
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the Imf_3_1::LineCompositeTask::execute() method. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
External links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41416
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openexr/OSV-2021-1627.yaml
- https://github.com/AcademySoftwareFoundation/openexr/commit/db217f29dfb24f6b4b5100c24ac5e7490e1c57d0
- https://github.com/AcademySoftwareFoundation/openexr/commit/11cad77da87c4fa2aab7d58dd5339e254db7937e
- https://github.com/AcademySoftwareFoundation/openexr/pull/1209