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Out-of-Bounds Affecting kernel-rt-modules-extra package, versions <0:4.18.0-372.9.1.rt7.166.el8

Severity

 Recommended
0.0
high
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.05% (16th percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELRTMODULESEXTRA-1963926
  • published 26 Jul 2021
  • disclosed 8 Apr 2021
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Introduced: 8 Apr 2021

CVE-2021-29154 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Centos:8 kernel-rt-modules-extra to version 0:4.18.0-372.9.1.rt7.166.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

References

CVSS Scores

version 3.1
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NVD

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
Expand this section

Red Hat

7 high
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SUSE

7 high