Vulnerability identifier: #VU31715

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-15306

CWE-ID: CWE-122

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 boundary error in "getChunkOffsetTableSize()" in "IlmImf/ImfMisc.cpp". A local user can pass specially crafted data to the applicatoin, trigger heap-based buffer overflow and cause a denial of service conditon on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenEXR: 1.0.4 - 2.5.1

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External links
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00048.html
http://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md
http://github.com/AcademySoftwareFoundation/openexr/blob/master/SECURITY.md
http://github.com/AcademySoftwareFoundation/openexr/pull/738
http://github.com/AcademySoftwareFoundation/openexr/releases/tag/v2.5.2
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LKDRVXORM2VLNHRLFKS3JHRABSHZ5W5M/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SHYAKRAUEMYVCV7U5WLDRE2YFGSV5PIT/
http://usn.ubuntu.com/4418-1/

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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.