Double Free Affecting kernel-debug-core package, versions <0:4.18.0-372.32.1.el8_6


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating

    Threat Intelligence

    EPSS
    0.05% (24th percentile)

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  • Snyk ID SNYK-ROCKY8-KERNELDEBUGCORE-3199162
  • published 5 Jan 2023
  • disclosed 8 Jan 2024

How to fix?

Upgrade Rocky-Linux:8 kernel-debug-core to version 0:4.18.0-372.32.1.el8_6 or higher.
This issue was patched in RLSA-2022:7110.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-core package and not the kernel-debug-core package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 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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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
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SUSE

7.8 high
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Red Hat

7.8 high