CVE-2021-20300
5.5
MEDIUM
CVSS 3.1
EPSS 0.40%
Description
A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. The highest threat from this vulnerability is to system availability.
How to fix CVE-2021-20300
To remediate CVE-2021-20300, upgrade the affected package to a fixed version below.
- Debian/openexr—upgrade to 2.5.4-1 or later
Is CVE-2021-20300 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.5.4-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |