NULL pointer dereference in Openexr
CVE-2021-20296
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.017 (76.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Openexr
- Debian Linux — versions 9.0, 10.0
- Openexr — versions OpenEXR 3.0.0-beta
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- bugs.chromium.org/p/oss-fuzz/issues/detail (Patch, Mailing List, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2021/07/msg00001.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202107-27 (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-2021-20296?
- CVE-2021-20296 is a medium-severity vulnerability in Openexr, classified under NULL Pointer Dereference. CVSS score: 5.3/10. Published 2021-04-01.
- How severe is CVE-2021-20296?
- Medium severity. CVSS v3 base score is 5.3 out of 10.