CVE-2021-20296

Description

A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory gentoo.org
Affected: n/a OpenEXR
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1939141 issue tracking third party advisory patch
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24854 issue tracking mailing list patch third party advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html third party advisory mailing list
https://security.gentoo.org/glsa/202107-27 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-20296?
CVE-2021-20296 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20296?
To fix CVE-2021-20296, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20296 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20296 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20296?
CVE-2021-20296 affects n/a OpenEXR.
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