CVE-2017-6951
medium
CVSS v3
5.5
CVSS v4 NEW
—
VIR risk
5.5
Description
The keyring_search_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the "dead" type.
Predictions
Exploit likelihood
55%
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 | 4.0.2-1 |
| debian | bullseye | fixed | 4.0.2-1 |
| debian | forky | fixed | 4.0.2-1 |
| debian | sid | fixed | 4.0.2-1 |
| debian | trixie | fixed | 4.0.2-1 |
| linux-kernel | affected | |
References
- http://www.securityfocus.com/bid/96943
- http://www.spinics.net/lists/keyrings/msg01845.html
- http://www.spinics.net/lists/keyrings/msg01846.html
- http://www.spinics.net/lists/keyrings/msg01849.html
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:2669
- https://www.suse.com/security/cve/CVE-2017-6951.html
- https://security-tracker.debian.org/tracker/CVE-2017-6951
CWEs
CWE-476
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.