Use After Free Affecting kernel-rt-trace-devel package, versions <0:3.10.0-1160.36.2.rt56.1179.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.08% (37th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2183642
  • published 26 Jul 2021
  • disclosed 4 Mar 2021

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-1160.36.2.rt56.1179.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.

The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.

CVSS Scores

version 3.1
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NVD

7.8 high
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SUSE

6.7 medium
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Red Hat

7.8 high