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Integer Overflow or Wraparound Affecting kernel-rt package, versions <0:3.10.0-862.rt56.804.el7

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.06% (30th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELRT-4832059
  • published 26 Jul 2021
  • disclosed 12 Feb 2018
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Introduced: 12 Feb 2018

CVE-2018-6927 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-rt to version 0:3.10.0-862.rt56.804.el7 or higher.
This issue was patched in RHSA-2018:0676.

NVD Description

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

The futex_requeue function in kernel/futex.c in the Linux kernel before 4.14.15 might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value.