CVEvulnerability

CVE-2021-3571

7.1 HIGH Published 2021-07-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-07-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
CVSS 2.0 ([email protected])
5.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:N/A:P
Weaknesses
CWE-119, CWE-125

Description

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.

Affected configurations

• linuxptp project linuxptp (< 2.0.1) • linuxptp project linuxptp (>= 3.0 < 3.1.1) • redhat enterprise linux 8.0 • fedoraproject fedora 33 • fedoraproject fedora 34

Related

Weakness · CWE (2)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
  • CWE-125 Out-of-bounds Read weakness

References