CVE-2021-3571

2021-07-0910:33:09

CWE-119

redhat

www.cve.org

flaw

ptp4l program

linuxptp package

little-endian architecture

ptp transparent clock

remote attacker

crafted one-step sync message

information leak

crash

data confidentiality

system availability

vulnerability

linuxptp versions

AI Score

6.8

Confidence

High

EPSS

0.003

Percentile

69.3%

JSON

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.

CNA Affected

[
  {
    "product": "linuxptp",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "linuxptp 3.1.1, linuxptp 2.0.1"
      }
    ]
  }
]