vulnwire
4.7med

CVE-2018-7995

Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
4.7
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.3%
percentile 23%
Public exploits
0
none known

Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory. NOTE: a third party has indicated that this report is not security relevant

CISA SSVC assessment

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction (EPSS)

0.30% probability of exploitation in the next 30 days, higher than 23% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.04.7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.7AV:L/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
Technology feeds
Linux kernel (RSS, critical only)

References

  • debian.org /security/2018/dsa-4187 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • usn.ubuntu.com /3654-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • bugzilla.suse.com /show_bug.cgi?id=1084755 · x_refsource_MISC, x_transferred
  • git.kernel.org /pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf · x_refsource_MISC, x_transferred
  • debian.org /security/2018/dsa-4188 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • lkml.org /lkml/2018/3/2/970 · x_refsource_MISC, x_transferred
  • securityfocus.com /bid/103356 · vdb-entry, x_refsource_BID, x_transferred
  • usn.ubuntu.com /3654-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.debian.org /debian-lts-announce/2018/05/msg00000.html · mailing-list, x_refsource_MLIST, x_transferred
  • usn.ubuntu.com /3656-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred

Sources

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