Race Condition Affecting kernel-debuginfo package, versions <0:4.14.313-235.533.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.07% (31st percentile)

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  • Snyk ID SNYK-AMZN2-KERNELDEBUGINFO-5789107
  • published 20 Jul 2023
  • disclosed 18 May 2023

How to fix?

Upgrade Amazon-Linux:2 kernel-debuginfo to version 0:4.14.313-235.533.amzn2 or higher.
This issue was patched in ALAS2-2023-2027.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debuginfo package and not the kernel-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

The Linux kernel before 6.2.9 has a race condition and resultant use-after-free in drivers/net/ethernet/qualcomm/emac/emac.c if a physically proximate attacker unplugs an emac based device.

CVSS Scores

version 3.1
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NVD

6.4 medium
  • Attack Vector (AV)
    Physical
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

6.4 medium