cve-2021-28510
Vulnerability from cvelistv5
Published
2023-01-24 00:00
Modified
2024-08-03 21:47
Severity ?
EPSS score ?
Summary
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.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| psirt@arista.com | https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076 | Exploit, Mitigation, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076 | Exploit, Mitigation, Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Arista Networks | EOS |
Version: 4.22 Version: 4.27.1 < Version: 4.26.4 < Version: 4.25.6 < Version: 4.24.8 < Version: 4.23.10 < |
|
|
|||
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"value": "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."
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"confidentialityImpact": "NONE",
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"value": "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.\n\nCVE-2021-28510 has been fixed in the following releases:\n4.27.2 and later releases in the 4.27.x train\n4.26.5 and later releases in the 4.26.x train\n4.25.7 and later releases in the 4.25.x train\n4.24.9 and later releases in the 4.24.x train\n4.23.11 and later releases in the 4.23.x train\n"
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"value": "Hotfix\n\nThe following hotfix can be applied to remediate CVE-2021-28510\nNote: Installing/uninstalling the SWIX will cause the PTP agent to restart.\n\nVersion: 1.0\nURL:SecurityAdvisory76_CVE-2021-28510_Hotfix.swix\n\nSWIX hash: (SHA-512)2b78b8274b7c73083775b0327e13819c655db07e22b80038bb3843002c679a798b53a4638c549a86183e01a835377bf262d27e60020a39516a5d215e2fadb437 "
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"descriptions": "[{\"lang\": \"en\", \"value\": \"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.\"}, {\"lang\": \"es\", \"value\": \"Para ciertos sistemas que ejecutan EOS, un paquete de protocolo de tiempo de precisi\\u00f3n (PTP) de un mensaje de administraci\\u00f3n/se\\u00f1alizaci\\u00f3n con un valor de tipo, longitud y valor (TLV) no v\\u00e1lido hace que el agente PTP se reinicie. Los reinicios repetidos del servicio har\\u00e1n que el servicio no est\\u00e9 disponible.\"}]",
"id": "CVE-2021-28510",
"lastModified": "2024-11-21T05:59:48.603",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"psirt@arista.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 1.4}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
"published": "2023-01-26T21:15:22.147",
"references": "[{\"url\": \"https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076\", \"source\": \"psirt@arista.com\", \"tags\": [\"Exploit\", \"Mitigation\", \"Vendor Advisory\"]}, {\"url\": \"https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Mitigation\", \"Vendor Advisory\"]}]",
"sourceIdentifier": "psirt@arista.com",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"psirt@arista.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-400\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-1284\"}]}]"
},
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Advisory\"]},{\"url\":\"https://www.arista.com/en/support/advisories-notices/security-advisory/15439-security-advisory-0076\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Mitigation\",\"Vendor Advisory\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.