Improper Input Validation Affecting torvalds/linux package, versions [,5.10.10)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004729
  • published26 Jan 2022
  • disclosed9 Mar 2021
  • creditUnknown

Introduced: 9 Mar 2021

CVE-2021-20268  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.10.10 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

References

CVSS Base Scores

version 3.1