CVE-2018-12232
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and 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-2018-12232
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-12232.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.17.3-1 |
| debian | bullseye | fixed | 4.17.3-1 |
| debian | forky | fixed | 4.17.3-1 |
| debian | sid | fixed | 4.17.3-1 |
| debian | trixie | fixed | 4.17.3-1 |
References
Verify integrity in audit chain (admin only). AS-IS.