Out-of-bounds Write Affecting torvalds/linux package, versions [,5.13.9)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.01% (2nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006038
  • published26 Jan 2022
  • disclosed7 Aug 2021
  • creditUnknown

Introduced: 7 Aug 2021

CVE-2021-38166  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.13.9 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write. In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.

References

CVSS Base Scores

version 3.1