Race Condition Affecting kernel-rt-trace-devel package, versions <0:3.10.0-1160.62.1.rt56.1203.el7


Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    0.04% (10th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2320318
  • published 15 Dec 2021
  • disclosed 3 Dec 2021

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-1160.62.1.rt56.1203.el7 or higher.

NVD Description

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

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.

CVSS Scores

version 3.1
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Snyk

7.4 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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NVD

7 high
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SUSE

7.4 high
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Red Hat

7.4 high