Out-of-bounds Read Affecting torvalds/linux package, versions [,5.4.10)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.03% (8th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004516
  • published26 Jan 2022
  • disclosed26 May 2021
  • creditUnknown

Introduced: 26 May 2021

CVE-2021-20177  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.4.10 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read. A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.

CVSS Base Scores

version 3.1