cve-2020-26569
Vulnerability from cvelistv5
Published
2020-12-28 15:52
Modified
2024-08-04 15:56
Severity ?
Summary
In EVPN VxLAN setups in Arista EOS, specific malformed packets can lead to incorrect MAC to IP bindings and as a result packets can be incorrectly forwarded across VLAN boundaries. This can result in traffic being discarded on the receiving VLAN. This affects versions: 4.21.12M and below releases in the 4.21.x train; 4.22.7M and below releases in the 4.22.x train; 4.23.5M and below releases in the 4.23.x train; 4.24.2F and below releases in the 4.24.x train.
References
cve@mitre.orghttps://www.arista.com/en/support/advisories-notices/security-advisories/11997-security-advisory-57Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.arista.com/en/support/advisories-notices/security-advisories/11997-security-advisory-57Exploit, Vendor Advisory
Impacted products
Vendor Product Version
n/a n/a Version: n/a
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      "id": "CVE-2020-26569",
      "lastModified": "2024-11-21T05:20:06.097",
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      "published": "2020-12-28T16:15:12.870",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2020-26569\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2020-12-28T16:15:12.870\",\"lastModified\":\"2024-11-21T05:20:06.097\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In EVPN VxLAN setups in Arista EOS, specific malformed packets can lead to incorrect MAC to IP bindings and as a result packets can be incorrectly forwarded across VLAN boundaries. This can result in traffic being discarded on the receiving VLAN. This affects versions: 4.21.12M and below releases in the 4.21.x train; 4.22.7M and below releases in the 4.22.x train; 4.23.5M and below releases in the 4.23.x train; 4.24.2F and below releases in the 4.24.x train.\"},{\"lang\":\"es\",\"value\":\"En unas configuraciones EVPN VxLAN en Arista EOS, los paquetes malformados espec\u00edficos pueden conllevar a enlaces incorrectos de MAC a IP y, como resultado, los paquetes pueden ser reenviados incorrectamente a trav\u00e9s de los l\u00edmites de la VLAN.\u0026#xa0;Esto puede causar que el tr\u00e1fico se descarte en la VLAN receptora.\u0026#xa0;Esto afecta a las versiones: 4.21.12M y versiones inferiores en el tren 4.21.x;\u0026#xa0;4.22.7M y versiones inferiores en el tren 4.22.x;\u0026#xa0;4.23.5M y versiones inferiores en el tren 4.23.x;\u0026#xa0;4.24.2F y versiones inferiores en el tren 4.24.x\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:P\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.21.0f\",\"versionEndIncluding\":\"4.21.12m\",\"matchCriteriaId\":\"F78A5196-C732-490D-96C8-EECC3D1D5864\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.22.0f\",\"versionEndIncluding\":\"4.22.7m\",\"matchCriteriaId\":\"EAE443F7-EDE6-421C-A898-4CC045C29344\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.23.0f\",\"versionEndIncluding\":\"4.23.5m\",\"matchCriteriaId\":\"562677FC-A1E6-4C29-995F-7FB833869FBE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.24.0f\",\"versionEndIncluding\":\"4.24.2f\",\"matchCriteriaId\":\"B4BF634C-E2E7-4982-BCA2-56BCDC37495E\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7010t-48:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4CCF6152-815E-4B3C-AE4B-CA598BEBD020\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050cx3-32s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E1FF0290-C671-4ABC-8A12-05E4D55FC4AE\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050cx3m-32s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"828C6E4F-814A-4060-8F5E-7FF359C8739C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050qx-32s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"253D74DE-97F5-40F3-B179-D2D4442C57FD\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050qx2-32s:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"75E03F9E-522F-4D9B-9267-09E2550B5465\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx-128:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"895A7AFD-BE76-47F5-B67B-6279046E4274\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx-64:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"74E258EC-EA50-4185-AA35-5D963C359E74\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx-72q:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1482D4FC-60B9-4C89-B892-71AA3E1031F3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx2-128:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C99D84E9-2229-459E-AE90-49C2EF670884\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx2-72q:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D922C725-1139-4DD4-92FC-9FF15E35CE62\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx3-48c8:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FE35C17F-0C60-4A40-9949-D4C5D94D1D7A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx3-48yc:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07BA078E-30B7-4E2C-B240-BF64E98143E9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx3-48yc12:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EBFD0706-CACB-40FA-A41B-46B39C6E1D33\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx3-48yc8:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5951D243-CB68-4B41-A913-D879CE502795\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050sx3-96yc8:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"73156612-D338-4E20-8C82-0E65DAA72331\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050tx-48:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"78E7CDCC-ADC6-4854-BFC4-72DA47C5F10B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050tx-64:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2B03678D-AD7B-4B1A-8E6A-1811DD8B1483\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050tx-72q:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E803639C-13A1-48CA-A589-C83654AE454F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:arista:7050tx2-128:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A495D282-D3DC-4D18-A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Advisory\"]},{\"url\":\"https://www.arista.com/en/support/advisories-notices/security-advisories/11997-security-advisory-57\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]}]}}"
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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