vulnwire
7.8high

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 derefer…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 35%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

0.41% probability of exploitation in the next 30 days, higher than 35% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • access.redhat.com /errata/RHSA-2017:2437 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:2444 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securityfocus.com /bid/97258 · vdb-entry, x_refsource_BID, x_transferred
  • github.com /torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81 · x_refsource_CONFIRM, x_transferred
  • usn.ubuntu.com /3849-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • usn.ubuntu.com /3849-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • access.redhat.com /errata/RHSA-2017:2077 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:1842 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1428353 · x_refsource_CONFIRM, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c06cfb08b88dfbe13be44a69ae2fdc3a7c902 · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.