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Red Hat: CVE-2021-3571: CVE-2021-3571 linuxptp: wrong length of one-step follow-up in transparent clock (Multiple Advisories)

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Red Hat: CVE-2021-3571: CVE-2021-3571 linuxptp: wrong length of one-step follow-up in transparent clock (Multiple Advisories)

Severity
6
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:P)
Published
07/09/2021
Created
11/11/2021
Added
11/10/2021
Modified
12/15/2023

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(s)

  • redhat-upgrade-linuxptp
  • redhat-upgrade-linuxptp-debuginfo
  • redhat-upgrade-linuxptp-debugsource

References

  • CVE-2021-3571
  • RHSA-2021:4321

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