vulnwire
7.8high

CVE-2017-18255

The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 33%
Public exploits
0
none known

The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation.

Exploit prediction (EPSS)

0.39% probability of exploitation in the next 30 days, higher than 33% 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
NVD2.04.6AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound
Technology feeds
Linux kernel (RSS, critical only)

References

  • usn.ubuntu.com /3696-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • usn.ubuntu.com /3754-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.debian.org /debian-lts-announce/2018/07/msg00020.html · mailing-list, x_refsource_MLIST, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1572e45a924f254d9570093abde46430c3172 · x_refsource_MISC, x_transferred
  • securityfocus.com /bid/103607 · vdb-entry, x_refsource_BID, x_transferred
  • usn.ubuntu.com /3696-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • github.com /torvalds/linux/commit/1572e45a924f254d9570093abde46430c3172e3d · x_refsource_MISC, x_transferred

Sources

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