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Use After Free Affecting kernel-tools-devel package, versions <0:4.14.192-147.314.amzn2

Severity

 Recommended
0.0
high
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-AMZN2-KERNELTOOLSDEVEL-7362033
  • published 25 Jun 2024
  • disclosed 19 Aug 2020
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Introduced: 19 Aug 2020

CVE-2020-14356 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 kernel-tools-devel to version 0:4.14.192-147.314.amzn2 or higher.
This issue was patched in ALAS2-2020-1480.

NVD Description

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

A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.

CVSS Scores

version 3.1
Expand this section

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

7.8 high
Expand this section

SUSE

5.5 medium