Medium severity · published Mar 25, 2022
CVE-2021-3941
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…
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0 · source: NVD
FE
Fedora · Fedoraproject
34; 35; 36 · source: NVD
OP
Openexr · Openexr
3.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3941
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3941
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2019789
Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I2JSMJ7HLWFPYYV7IAQZD5ZUUUN7RWBN/
Third Party Advisory
https://security.gentoo.org/glsa/202210-31
Third Party Advisory
https://www.debian.org/security/2022/dsa-5299
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