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GHSA-W9WF-G769-RJV3
Vulnerability from github – Published: 2023-09-27 18:30 – Updated: 2024-01-25 18:30
VLAI?
Details
A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.
Severity ?
8.6 (High)
{
"affected": [],
"aliases": [
"CVE-2023-20187"
],
"database_specific": {
"cwe_ids": [
"CWE-823"
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"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-27T18:15:11Z",
"severity": "HIGH"
},
"details": "A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. \n\n This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.",
"id": "GHSA-w9wf-g769-rjv3",
"modified": "2024-01-25T18:30:44Z",
"published": "2023-09-27T18:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20187"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mlre-H93FswRz"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
CVE-2023-20187 (GCVE-0-2023-20187)
Vulnerability from cvelistv5 – Published: 2023-09-27 17:19 – Updated: 2024-08-02 09:05
VLAI?
EPSS
Summary
A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.
Severity ?
8.6 (High)
CWE
- CWE-823 - Use of Out-of-range Pointer Offset
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco IOS XE Software |
Affected:
3.7.1S
Affected: 3.7.2S Affected: 3.7.3S Affected: 3.7.4S Affected: 3.7.5S Affected: 3.7.6S Affected: 3.7.7S Affected: 3.7.2tS Affected: 3.8.0S Affected: 3.8.1S Affected: 3.8.2S Affected: 3.9.1S Affected: 3.9.0S Affected: 3.9.2S Affected: 3.10.0S Affected: 3.10.1S Affected: 3.10.2S Affected: 3.10.3S Affected: 3.10.4S Affected: 3.10.5S Affected: 3.10.6S Affected: 3.10.7S Affected: 3.10.1xbS Affected: 3.10.8S Affected: 3.10.8aS Affected: 3.10.9S Affected: 3.10.10S Affected: 3.11.1S Affected: 3.11.2S Affected: 3.11.0S Affected: 3.11.3S Affected: 3.11.4S Affected: 3.12.0S Affected: 3.12.1S Affected: 3.12.2S Affected: 3.12.3S Affected: 3.12.4S Affected: 3.13.0S Affected: 3.13.1S Affected: 3.13.2S Affected: 3.13.3S Affected: 3.13.4S Affected: 3.13.5S Affected: 3.13.2aS Affected: 3.13.5aS Affected: 3.13.6S Affected: 3.13.7S Affected: 3.13.6aS Affected: 3.13.8S Affected: 3.13.9S Affected: 3.13.10S Affected: 3.14.0S Affected: 3.14.1S Affected: 3.14.2S Affected: 3.14.3S Affected: 3.14.4S Affected: 3.15.0S Affected: 3.15.1S Affected: 3.15.2S Affected: 3.15.3S Affected: 3.15.4S Affected: 3.16.0S Affected: 3.16.1aS Affected: 3.16.2S Affected: 3.16.3S Affected: 3.16.2bS Affected: 3.16.4aS Affected: 3.16.4bS Affected: 3.16.5S Affected: 3.16.6S Affected: 3.16.7S Affected: 3.16.6bS Affected: 3.16.7aS Affected: 3.16.7bS Affected: 3.16.8S Affected: 3.16.9S Affected: 3.16.10S Affected: 3.17.0S Affected: 3.17.1S Affected: 3.17.2S Affected: 3.17.1aS Affected: 3.17.3S Affected: 3.17.4S Affected: 16.2.1 Affected: 16.2.2 Affected: 16.3.1 Affected: 16.3.2 Affected: 16.3.3 Affected: 16.3.1a Affected: 16.3.4 Affected: 16.3.5 Affected: 16.3.6 Affected: 16.3.7 Affected: 16.3.8 Affected: 16.3.9 Affected: 16.3.10 Affected: 16.3.11 Affected: 16.4.1 Affected: 16.4.2 Affected: 16.4.3 Affected: 16.5.1 Affected: 16.5.1b Affected: 16.5.2 Affected: 16.5.3 Affected: 16.6.1 Affected: 16.6.2 Affected: 16.6.3 Affected: 16.6.4 Affected: 16.6.5 Affected: 16.6.6 Affected: 16.6.7 Affected: 16.6.8 Affected: 16.6.9 Affected: 16.6.10 Affected: 16.7.1 Affected: 16.7.2 Affected: 16.7.3 Affected: 16.8.1 Affected: 16.8.1s Affected: 16.8.2 Affected: 16.8.3 Affected: 16.9.1 Affected: 16.9.2 Affected: 16.9.1s Affected: 16.9.3 Affected: 16.9.4 Affected: 16.9.5 Affected: 16.9.6 Affected: 16.9.7 Affected: 16.9.8 Affected: 16.10.1 Affected: 16.10.1a Affected: 16.10.1s Affected: 16.10.1e Affected: 16.10.2 Affected: 16.10.3 Affected: 16.11.1 Affected: 16.11.1a Affected: 16.11.2 Affected: 16.11.1s Affected: 16.12.1 Affected: 16.12.1s Affected: 16.12.1a Affected: 16.12.1c Affected: 16.12.2 Affected: 16.12.3 Affected: 16.12.8 Affected: 16.12.2s Affected: 16.12.4 Affected: 16.12.3s Affected: 16.12.5 Affected: 16.12.6 Affected: 16.12.7 Affected: 16.12.10a Affected: 17.1.1 Affected: 17.1.1s Affected: 17.1.1t Affected: 17.1.3 Affected: 17.2.1 Affected: 17.2.1r Affected: 17.2.1v Affected: 17.2.2 Affected: 17.2.3 Affected: 17.3.1 Affected: 17.3.2 Affected: 17.3.3 Affected: 17.3.1a Affected: 17.3.4 Affected: 17.3.5 Affected: 17.3.4a Affected: 17.3.6 Affected: 17.3.7 Affected: 17.4.1 Affected: 17.4.2 Affected: 17.4.1a Affected: 17.4.1b Affected: 17.5.1 Affected: 17.5.1a Affected: 17.5.1b Affected: 17.5.1c Affected: 17.6.1 Affected: 17.6.2 Affected: 17.6.1a Affected: 17.6.3 Affected: 17.6.3a Affected: 17.6.4 Affected: 17.6.5 Affected: 17.6.5a Affected: 17.7.1 Affected: 17.7.1a Affected: 17.7.2 Affected: 17.10.1 Affected: 17.10.1a Affected: 17.8.1 Affected: 17.8.1a Affected: 17.9.1 Affected: 17.9.2 Affected: 17.9.1a Affected: 17.9.3 Affected: 17.9.2a Affected: 17.9.3a Affected: 17.11.1 Affected: 17.11.1a |
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{
"status": "affected",
"version": "17.7.2"
},
{
"status": "affected",
"version": "17.10.1"
},
{
"status": "affected",
"version": "17.10.1a"
},
{
"status": "affected",
"version": "17.8.1"
},
{
"status": "affected",
"version": "17.8.1a"
},
{
"status": "affected",
"version": "17.9.1"
},
{
"status": "affected",
"version": "17.9.2"
},
{
"status": "affected",
"version": "17.9.1a"
},
{
"status": "affected",
"version": "17.9.3"
},
{
"status": "affected",
"version": "17.9.2a"
},
{
"status": "affected",
"version": "17.9.3a"
},
{
"status": "affected",
"version": "17.11.1"
},
{
"status": "affected",
"version": "17.11.1a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. \r\n\r This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-823",
"description": "Use of Out-of-range Pointer Offset",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-25T16:57:52.741Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-mlre-H93FswRz",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mlre-H93FswRz"
}
],
"source": {
"advisory": "cisco-sa-mlre-H93FswRz",
"defects": [
"CSCwe91722"
],
"discovery": "EXTERNAL"
}
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2023-20187",
"datePublished": "2023-09-27T17:19:44.488Z",
"dateReserved": "2022-10-27T18:47:50.364Z",
"dateUpdated": "2024-08-02T09:05:36.976Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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