5.5med

CVE-2017-2618

A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10.

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 40%
Public exploits
0
none known

Summary

A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.

Exploit prediction (EPSS)

0.46% probability of exploitation in the next 30 days, higher than 40% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.9AV:L/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • Linux kernel

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • marc.info /?l=selinux&m=148588165923772&w=2 · mailing-list, x_refsource_MLIST, x_transferred
  • debian.org /security/2017/dsa-3791 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=CVE-2017-2618 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2017:0932 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • git.kernel.org /pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2017:0933 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:0931 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securityfocus.com /bid/96272 · vdb-entry, x_refsource_BID, 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.