CVE-2017-15951
high
CVSS v3
7.8
CVSS v4 NEW
—
VIR risk
7.8
Description
The KEYS subsystem in the Linux kernel before 4.13.10 does not correctly synchronize the actions of updating versus finding a key in the "negative" state to avoid a race condition, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls.
Predictions
Exploit likelihood
75%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.13.10-1 |
| debian | bullseye | fixed | 4.13.10-1 |
| debian | forky | fixed | 4.13.10-1 |
| debian | sid | fixed | 4.13.10-1 |
| debian | trixie | fixed | 4.13.10-1 |
| linux-kernel | affected | 4.4.95 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=363b02dab09b3226f3bd1420dad9c72b79a42a76
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.10
- http://www.securityfocus.com/bid/101621
- https://github.com/torvalds/linux/commit/363b02dab09b3226f3bd1420dad9c72b79a42a76
- https://www.suse.com/security/cve/CVE-2017-15951.html
- https://security-tracker.debian.org/tracker/CVE-2017-15951
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.