CVE-2021-3571 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Project Linuxptp
Severity
7.1HIGHNVD
EPSS
0.7%
top 27.48%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 9
Latest updateMay 24
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:HExploitability: 2.8 | Impact: 4.2
Affected Packages3 packages
Also affects: Fedora 33, 34, Enterprise Linux 8.0
Patches
🔴Vulnerability Details
3📋Vendor Advisories
3Microsoft▶
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 ↗2021-07-13
Debian▶
CVE-2021-3571: linuxptp - A flaw was found in the ptp4l program of the linuxptp package. When ptp4l is ope...↗2021