vulnerability
Alma Linux: CVE-2021-3571: Moderate: linuxptp security, bug fix, and enhancement update (ALSA-2021-4321)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:L/Au:S/C:P/I:N/A:P) | Jul 9, 2021 | May 4, 2022 | Mar 31, 2026 |
Severity
6
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:P)
Published
Jul 9, 2021
Added
May 4, 2022
Modified
Mar 31, 2026
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.
Solution
alma-upgrade-linuxptp
Rapid7 Labs
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