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Use of Uninitialized Resource Affecting kernel-debuginfo package, versions <0:4.14.262-200.489.amzn2

Severity

 Recommended
0.0
high
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.12% (48th percentile)

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  • Snyk ID SNYK-AMZN2-KERNELDEBUGINFO-2395671
  • published 8 Feb 2022
  • disclosed 22 Dec 2021
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Introduced: 22 Dec 2021

CVE-2021-44733 Open this link in a new tab
CWE-908 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 kernel-debuginfo to version 0:4.14.262-200.489.amzn2 or higher.
This issue was patched in ALAS2-2022-1749.

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.

A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.

CVSS Scores

version 3.1
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NVD

7 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

7.4 high
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SUSE

4.2 medium