#VU31713 NULL pointer dereference in OpenEXR - CVE-2020-15304

Vulnerability identifier: #VU31713

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-15304

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
OpenEXR
Client/Desktop applications / Multimedia software

Vendor: OpenEXR

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in "TiledInputFile::TiledInputFile()" in "IlmImf/ImfTiledInputFile.cpp". A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

OpenEXR: 1.0.4 - 2.5.1

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External links
https://lists.opensuse.org/opensuse-security-announce/2020-07/msg00025.html
https://lists.opensuse.org/opensuse-security-announce/2020-07/msg00048.html
https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md
https://github.com/AcademySoftwareFoundation/openexr/blob/master/SECURITY.md
https://github.com/AcademySoftwareFoundation/openexr/pull/727
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.5.2
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LKDRVXORM2VLNHRLFKS3JHRABSHZ5W5M/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SHYAKRAUEMYVCV7U5WLDRE2YFGSV5PIT/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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