Use After Free Affecting kernel-rt-trace-devel package, versions <0:3.10.0-1160.80.1.rt56.1225.el7


Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    0.05% (22nd percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2978679
  • published 10 Aug 2022
  • disclosed 9 Aug 2022

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-1160.80.1.rt56.1225.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.

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

CVSS Scores

version 3.1
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Snyk

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

7.8 high
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SUSE

7.8 high
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Red Hat

7.8 high