CVE-2021-3941

Description

In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as `float Z = (1 - chroma.white.x - chroma.white.y) * Y / chroma.white.y;` and `chroma.green.y * (X + Z))) / d;` but the divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero condition which could affect the availability of programs linked with OpenEXR.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory debian.org
Affected: n/a openexr
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2019789 patch third party advisory issue tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I2JSMJ7HLWFPYYV7IAQZD5ZUUUN7RWBN/ vendor advisory
https://security.gentoo.org/glsa/202210-31 third party advisory vendor advisory
https://www.debian.org/security/2022/dsa-5299 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-2021-3941?
CVE-2021-3941 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3941?
To fix CVE-2021-3941, 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-2021-3941 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3941 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-2021-3941?
CVE-2021-3941 affects n/a openexr.
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