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Improper Privilege Management Affecting kernel-livepatch-4_12_14-25_3-default package, versions <2-2.1

Severity

 Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.47% (37th percentile)

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  • Snyk IDSNYK-SLES150-KERNELLIVEPATCH41214253DEFAULT-2759782
  • published14 Apr 2022
  • disclosed21 Aug 2018
Report a new vulnerability Found a mistake?

Introduced: 21 Aug 2018

CVE-2018-10853  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-livepatch-4_12_14-25_3-default to version 2-2.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-4_12_14-25_3-default package and not the kernel-livepatch-4_12_14-25_3-default package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.

References