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Improper Authentication Affecting kernel-rt-debug-kvm package, versions <0:3.10.0-693.rt56.617.el7

Severity

 Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTDEBUGKVM-2089024
  • published 26 Jul 2021
  • disclosed 9 Jan 2017
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Introduced: 9 Jan 2017

CVE-2017-5551 Open this link in a new tab
CWE-287 Open this link in a new tab

How to fix?

Upgrade Centos:7 kernel-rt-debug-kvm to version 0:3.10.0-693.rt56.617.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The simple_set_acl function in fs/posix_acl.c in the Linux kernel before 4.9.6 preserves the setgid bit during a setxattr call involving a tmpfs filesystem, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-7097.