What is CVE-2021-3571?

CVE-2021-3571 is a high-severity vulnerability in Linuxptp_project Linuxptp, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.1/10. Published 2021-07-09.

How severe is CVE-2021-3571?

High severity. CVSS v3 base score is 7.1 out of 10.

Buffer overflow in Linuxptp_project Linuxptp

CVE-2021-3571

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…

Vulnerability class: Buffer Overflow

EPSS: 0.019 (77.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H.

Affected products

Linuxptp_project Linuxptp
Fedoraproject Fedora — versions 33, 34
Redhat Enterprise_linux — versions 8.0
N/a Linuxptp — versions linuxptp 3.1.1, linuxptp 2.0.1

Weakness classification (CWE)

References

secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)

Frequently asked questions

What is CVE-2021-3571?: CVE-2021-3571 is a high-severity vulnerability in Linuxptp_project Linuxptp, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.1/10. Published 2021-07-09.
How severe is CVE-2021-3571?: High severity. CVSS v3 base score is 7.1 out of 10.