CVE-2021-3571
moderate-risk
Published 2021-07-09
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.
Do I need to act?
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0.72% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.1/10
High
NETWORK
/ LOW complexity
Affected Products (4)
Affected Vendors
References (6)
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1966241
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1966241
37
/ 100
moderate-risk
Severity
25/34 · High
Exploitability
2/34 · Minimal
Exposure
10/34 · Low