CVE-2021-3428
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-3428
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-3428.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | affected | | |
| sles | affected | | |
| debian | bookworm | fixed | 5.8.7-1 |
| debian | bullseye | fixed | 5.8.7-1 |
| debian | forky | fixed | 5.8.7-1 |
| debian | sid | fixed | 5.8.7-1 |
| debian | trixie | fixed | 5.8.7-1 |
References
Verify integrity in audit chain (admin only). AS-IS.