NULL pointer dereference in Linux Kernel
CVE-2017-2647
The KEYS subsystem in the Linux kernel before 3.18 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.6% 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
- access.redhat.com/errata/RHSA-2017:2437 (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:2444 (vendor-advisory)
- www.securityfocus.com/bid/97258 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81 (Patch, Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/3849-1/ (vendor-advisory)
- usn.ubuntu.com/3849-2/ (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:2077 (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:1842 (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-2647?
- CVE-2017-2647 is a high-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 7.8/10. Published 2017-03-31.
- How severe is CVE-2017-2647?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-2647 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.