Metrics
Affected Vendors & Products
Source | ID | Title |
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EUVD-2021-15186 | For certain systems running EOS, a Precision Time Protocol (PTP) packet of a management/signaling message with an invalid Type-Length-Value (TLV) causes the PTP agent to restart. Repeated restarts of the service will make the service unavailable. |
Solution
The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Artista recommends customers move to the latest version of each release that contains all the fixes listed below. CVE-2021-28510 has been fixed in the following releases: 4.27.2 and later releases in the 4.27.x train 4.26.5 and later releases in the 4.26.x train 4.25.7 and later releases in the 4.25.x train 4.24.9 and later releases in the 4.24.x train 4.23.11 and later releases in the 4.23.x train
Workaround
Install ACL rules to drop PTP packets from untrusted sources. Best practice is to block access to untrusted (non-management) networks.
Tue, 01 Apr 2025 19:15:00 +0000
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Status: PUBLISHED
Assigner: Arista
Published:
Updated: 2025-04-01T18:44:26.214Z
Reserved: 2021-03-16T00:00:00.000Z
Link: CVE-2021-28510

Updated: 2024-08-03T21:47:32.671Z

Status : Modified
Published: 2023-01-26T21:15:22.147
Modified: 2024-11-21T05:59:48.603
Link: CVE-2021-28510

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