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Improper Privilege Management Affecting kernel-debug package, versions <0:3.10.0-1062.el7

Severity

 Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELDEBUG-2537955
  • published10 Apr 2022
  • disclosed11 Sept 2018
Report a new vulnerability Found a mistake?

Introduced: 11 Sep 2018

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

How to fix?

Upgrade Oracle:7 kernel-debug to version 0:3.10.0-1062.el7 or higher.
This issue was patched in ELSA-2019-2029.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by Oracle. See How to fix? for Oracle:7 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