NULL pointer dereference in Linux Kernel
CVE-2017-6951
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/96943 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2017:2669 (vendor-advisory)
- www.spinics.net/lists/keyrings/msg01849.html (Mailing List, Third Party Advisory)
- www.spinics.net/lists/keyrings/msg01845.html (Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:2077 (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:1842 (vendor-advisory)
- www.spinics.net/lists/keyrings/msg01846.html (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-6951?
- CVE-2017-6951 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2017-03-16.
- How severe is CVE-2017-6951?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2017-6951 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.