CVE-2021-33910
systemd - security update
5.5
MEDIUM
CVSS 3.1
EPSS 0.05%
Description
basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.
How to fix CVE-2021-33910
To remediate CVE-2021-33910, upgrade the affected package to a fixed version below.
- Debian/systemd—upgrade to 247.3-6 or later
- —upgrade to 232-25+deb9u13 or later
- —upgrade to 241-7~deb10u8 or later
Is CVE-2021-33910 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 247.3-6
- from 0, < 232-25+deb9u13
- from 0, < 241-7~deb10u8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |