CVE-2021-33910
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-33910
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2021:2717
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-33910.html
Vendor advisory: arch — https://security.archlinux.org/ASA-202107-57
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 249.1-1 | |
| sles | affected | | |
| rocky | 8 | fixed | |
| debian | bookworm | fixed | 247.3-6 |
| debian | bullseye | fixed | 247.3-6 |
| debian | forky | fixed | 247.3-6 |
| debian | sid | fixed | 247.3-6 |
| debian | trixie | fixed | 247.3-6 |
References
Verify integrity in audit chain (admin only). AS-IS.