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NULL Pointer Dereference Affecting kernel-debuginfo package, versions <0:4.9.62-21.56.amzn1

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNELDEBUGINFO-1708869
  • published27 Sept 2021
  • disclosed22 Nov 2017
Report a new vulnerability Found a mistake?

Introduced: 22 Nov 2017

CVE-2017-12193  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel-debuginfo to version 0:4.9.62-21.56.amzn1 or higher.
This issue was patched in ALAS-2017-925.

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:2018.03 relevant fixed versions and status.

The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.