Exposure of Resource to Wrong Sphere Affecting kernel-debug-core package, versions <0:4.18.0-372.32.1.el8_6


Severity

Recommended
high

Based on Rocky Linux security rating

    Threat Intelligence

    EPSS
    0.07% (33rd percentile)

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  • Snyk ID SNYK-ROCKY8-KERNELDEBUGCORE-3199490
  • published 5 Jan 2023
  • disclosed 12 Jul 2022

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.

Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.

CVSS Scores

version 3.1
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NVD

6.5 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    None
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SUSE

4.7 medium
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Red Hat

5.6 medium