Execution with Unnecessary Privileges The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)

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Snyk IDSNYK-RHEL7-KERNELHEADERS-4771490
published26 Jul 2021
disclosed5 Jun 2018

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Introduced: 5 Jun 2018

CVE-2018-10853 (opens in a new tab) CWE-250 (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.

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.