NULL Pointer Dereference Affecting torvalds/linux package, versions [,5.9.14)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.14% (36th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006674
  • published26 Jan 2022
  • disclosed13 May 2021
  • creditUnknown

Introduced: 13 May 2021

CVE-2020-27830  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.9.14 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash.

CVSS Base Scores

version 3.1