Vulnerability identifier: #VU51176

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-16587

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenEXR
Client/Desktop applications / Multimedia software

Vendor: OpenEXR

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in chunkOffsetReconstruction in ImfMultiPartInputFile.cpp. A remote attacker can use a specially crafted EXR file, trigger heap-based buffer overflow and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenEXR: 2.3.0

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External links
http://github.com/AcademySoftwareFoundation/openexr/commit/8b5370c688a7362673c3a5256d93695617a4cd9a
http://github.com/AcademySoftwareFoundation/openexr/issues/491

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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.