Improper Input Validation Affecting torvalds/linux package, versions [,6.3-rc1)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-5952863
  • published11 Oct 2023
  • disclosed29 Sept 2023
  • creditRyota Shiga

Introduced: 29 Sep 2023

CVE-2023-39191  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.3-rc1 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation in the eBPF subsystem, due to insufficient stack type checks in dynptr. An attacker can manipulate the dynamic pointers to execute arbitrary code or cause a denial of service by exploiting this vulnerability.

Note:

This is only exploitable if the attacker has CAP_BPF privileges.

CVSS Base Scores

version 3.1