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Vulnerability · Published Jul 9, 2021 · Assigned by redhat

CVE-2021-3570

High 8.8

In plain English

A high-severity memory corruption in linuxptp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.0% (higher than 87% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.8High
Exploit odds (30 days)3.0%top 12.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxptp3.1-2.1DEBIAN-CVE-2021-3570
Debian:13linuxptp3.1-2.1DEBIAN-CVE-2021-3570
Debian:14linuxptp3.1-2.1DEBIAN-CVE-2021-3570
Rocky Linux:8linuxptp0:2.0-5.el8_4.1RLSA-2021:2660

Affected products (as reported)

VendorProductVersions
n/a linuxptp linuxptp 3.1.1, linuxptp 2.0.1, linuxptp 1.9.3, linuxptp 1.8.1, linuxptp 1.7.1, linuxptp 1.6.1, linuxptp 1.5.1

Weakness: CWE-119

References