CVE-2021-20266
4.9
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.
How to fix CVE-2021-20266
To remediate CVE-2021-20266, upgrade the affected package to a fixed version below.
- Debian/rpm—upgrade to 4.16.1.2+dfsg1-1 or later
Is CVE-2021-20266 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.16.1.2+dfsg1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |