CVE-2021-28510
Last modified
CVE-2021-28510 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Arista | Eos | < 4.23.10 |
| Arista | Eos | >= 4.24.0, < 4.24.8 |
| Arista | Eos | >= 4.25.0, < 4.25.6 |
| Arista | Eos | >= 4.26.0, < 4.26.4 |
| Arista | Eos | >= 4.27.0, < 4.27.1 |
References
- https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076Exploit, Mitigation, Vendor Advisory
- https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076Exploit, Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
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