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


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.31% (70th percentile)

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  • Snyk IDSNYK-ROCKY8-LINUXPTP-3280362
  • published3 Feb 2023
  • 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 Rocky-Linux:8 linuxptp to version 0:3.1.1-1.el8 or higher.
This issue was patched in RLSA-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 Rocky-Linux. See How to fix? for Rocky-Linux: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 Scores

version 3.1