Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-28510

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
26/01/2023
Last modified:
30/06/2023

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 4.23.10 (excluding)
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 4.24.0 (including) 4.24.8 (excluding)
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 4.25.0 (including) 4.25.6 (excluding)
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 4.26.0 (including) 4.26.4 (excluding)
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* 4.27.0 (including) 4.27.1 (excluding)
cpe:2.3:h:arista:7020r:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050cx3-32s:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050cx3m-32s:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050qx-32s:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050qx2-32s:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050sx-128:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050sx-64:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050sx-72q:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050sx2-128:-:*:*:*:*:*:*:*
cpe:2.3:h:arista:7050sx2-72q:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools