Vulnerability in Openexr
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 * (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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Openexr — versions 3.1.2
- Debian Linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 34, 35, 36
- Red Hat Enterprise Linux — versions 6.0, 7.0, 8.0
- Openexr — versions OpenEXR 3.1.2
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202210-31 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2022/dsa-5299 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/12/msg00022.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3941?
- CVE-2021-3941 is a medium-severity vulnerability in Openexr, classified under Divide By Zero. CVSS score: 6.5/10. Published 2022-03-25.
- How severe is CVE-2021-3941?
- Medium severity. CVSS v3 base score is 6.5 out of 10.