Remote code execution in OpenEXR

1) Heap-based buffer overflow

EUVDB-ID: #VU86235

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5841

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when validating the number of scanline samples of a OpenEXR file containing deep scanline data. A remote attacker can pass specially crafted file to the application, trigger a 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenEXR: 3.0.0 beta - 3.2.1

External links

http://takeonme.org/cves/CVE-2023-5841.html
http://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.1.12
http://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.