CVE-2020-8428
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-8428
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-8428.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.4.19-1 |
| debian | bullseye | fixed | 5.4.19-1 |
| debian | forky | fixed | 5.4.19-1 |
| debian | sid | fixed | 5.4.19-1 |
| debian | trixie | fixed | 5.4.19-1 |
References
Verify integrity in audit chain (admin only). AS-IS.