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Execution with Unnecessary Privileges Affecting kernel-debug-devel package, versions *

Severity

 Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-RHEL6-KERNELDEBUGDEVEL-1351095
  • published26 Jul 2021
  • disclosed16 Mar 2016
Report a new vulnerability Found a mistake?

Introduced: 16 Mar 2016

CVE-2016-3157  (opens in a new tab)
CWE-250  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:6 kernel-debug-devel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel package and not the kernel-debug-devel package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.