Out-of-bounds Read Affecting linuxptp package, versions <0:3.1.1-1.el8


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
1.9% (77th percentile)

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  • Snyk IDSNYK-ORACLE8-LINUXPTP-2591018
  • published10 Apr 2022
  • disclosed9 Jul 2021

Introduced: 9 Jul 2021

CVE-2021-3571  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Oracle:8 linuxptp to version 0:3.1.1-1.el8 or higher.
This issue was patched in ELSA-2021-4321.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linuxptp package and not the linuxptp package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

A flaw was found in the ptp4l program of the linuxptp package. When ptp4l is operating on a little-endian architecture as a PTP transparent clock, a remote attacker could send a crafted one-step sync message to cause an information leak or crash. The highest threat from this vulnerability is to data confidentiality and system availability. This flaw affects linuxptp versions before 3.1.1 and before 2.0.1.

CVSS Base Scores

version 3.1