NULL Pointer Dereference Affecting torvalds/linux package, versions [,4.13.11)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004832
  • published26 Jan 2022
  • disclosed22 Nov 2017
  • creditUnknown

Introduced: 22 Nov 2017

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

How to fix?

Upgrade torvalds/linux to version 4.13.11 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. 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.

References

CVSS Base Scores

version 3.1