Denial of Service (DoS) Affecting torvalds/linux package, versions [,4.19.19)[4.20.0,4.20.6)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004939
  • published26 Jan 2022
  • disclosed1 Feb 2019
  • creditUnknown

Introduced: 1 Feb 2019

CVE-2019-7308  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.19.19, 4.20.6 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS) kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.

CVSS Base Scores

version 3.1