Buffer overflow in Openexr
CVE-2021-20298
A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this vulnerability is to system availability.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: +0.000
Affected products
- Openexr
- Debian Linux — versions 10.0
- Openexr — versions Fixed in OpenEXR 3.0.0-beta
Weakness classification (CWE)
References
- bugs.chromium.org/p/oss-fuzz/issues/detail (Mailing List, Third Party Advisory)
- github.com/AcademySoftwareFoundation/openexr/pull/843 (Patch, Third Party Advisory)
- github.com/AcademySoftwareFoundation/openexr/commit/85fd638ae0d5fa132434f4cbf32… (Patch, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- access.redhat.com/security/cve/CVE-2021-20298 (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-2021-20298?
- CVE-2021-20298 is a high-severity vulnerability in Openexr, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-08-23.
- How severe is CVE-2021-20298?
- High severity. CVSS v3 base score is 7.5 out of 10.