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CiscoCVELIST:CVE-2023-20187HistorySep 27, 2023 - 5:19 p.m.
CVE-2023-20187
2023-09-2717:19:44
cisco
www.cve.org
cisco ios xe
denial of service
ipv6 multicast
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
8.7 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
27.0%
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.
CNA Affected
[
{
"vendor": "Cisco",
"product": "Cisco IOS XE Software",
"versions": [
{
"version": "3.7.1S",
"status": "affected"
},
{
"version": "3.7.2S",
"status": "affected"
},
{
"version": "3.7.3S",
"status": "affected"
},
{
"version": "3.7.4S",
"status": "affected"
},
{
"version": "3.7.5S",
"status": "affected"
},
{
"version": "3.7.6S",
"status": "affected"
},
{
"version": "3.7.7S",
"status": "affected"
},
{
"version": "3.7.2tS",
"status": "affected"
},
{
"version": "3.8.0S",
"status": "affected"
},
{
"version": "3.8.1S",
"status": "affected"
},
{
"version": "3.8.2S",
"status": "affected"
},
{
"version": "3.9.1S",
"status": "affected"
},
{
"version": "3.9.0S",
"status": "affected"
},
{
"version": "3.9.2S",
"status": "affected"
},
{
"version": "3.10.0S",
"status": "affected"
},
{
"version": "3.10.1S",
"status": "affected"
},
{
"version": "3.10.2S",
"status": "affected"
},
{
"version": "3.10.3S",
"status": "affected"
},
{
"version": "3.10.4S",
"status": "affected"
},
{
"version": "3.10.5S",
"status": "affected"
},
{
"version": "3.10.6S",
"status": "affected"
},
{
"version": "3.10.7S",
"status": "affected"
},
{
"version": "3.10.1xbS",
"status": "affected"
},
{
"version": "3.10.8S",
"status": "affected"
},
{
"version": "3.10.8aS",
"status": "affected"
},
{
"version": "3.10.9S",
"status": "affected"
},
{
"version": "3.10.10S",
"status": "affected"
},
{
"version": "3.11.1S",
"status": "affected"
},
{
"version": "3.11.2S",
"status": "affected"
},
{
"version": "3.11.0S",
"status": "affected"
},
{
"version": "3.11.3S",
"status": "affected"
},
{
"version": "3.11.4S",
"status": "affected"
},
{
"version": "3.12.0S",
"status": "affected"
},
{
"version": "3.12.1S",
"status": "affected"
},
{
"version": "3.12.2S",
"status": "affected"
},
{
"version": "3.12.3S",
"status": "affected"
},
{
"version": "3.12.4S",
"status": "affected"
},
{
"version": "3.13.0S",
"status": "affected"
},
{
"version": "3.13.1S",
"status": "affected"
},
{
"version": "3.13.2S",
"status": "affected"
},
{
"version": "3.13.3S",
"status": "affected"
},
{
"version": "3.13.4S",
"status": "affected"
},
{
"version": "3.13.5S",
"status": "affected"
},
{
"version": "3.13.2aS",
"status": "affected"
},
{
"version": "3.13.5aS",
"status": "affected"
},
{
"version": "3.13.6S",
"status": "affected"
},
{
"version": "3.13.7S",
"status": "affected"
},
{
"version": "3.13.6aS",
"status": "affected"
},
{
"version": "3.13.8S",
"status": "affected"
},
{
"version": "3.13.9S",
"status": "affected"
},
{
"version": "3.13.10S",
"status": "affected"
},
{
"version": "3.14.0S",
"status": "affected"
},
{
"version": "3.14.1S",
"status": "affected"
},
{
"version": "3.14.2S",
"status": "affected"
},
{
"version": "3.14.3S",
"status": "affected"
},
{
"version": "3.14.4S",
"status": "affected"
},
{
"version": "3.15.0S",
"status": "affected"
},
{
"version": "3.15.1S",
"status": "affected"
},
{
"version": "3.15.2S",
"status": "affected"
},
{
"version": "3.15.3S",
"status": "affected"
},
{
"version": "3.15.4S",
"status": "affected"
},
{
"version": "3.16.0S",
"status": "affected"
},
{
"version": "3.16.1aS",
"status": "affected"
},
{
"version": "3.16.2S",
"status": "affected"
},
{
"version": "3.16.3S",
"status": "affected"
},
{
"version": "3.16.2bS",
"status": "affected"
},
{
"version": "3.16.4aS",
"status": "affected"
},
{
"version": "3.16.4bS",
"status": "affected"
},
{
"version": "3.16.5S",
"status": "affected"
},
{
"version": "3.16.6S",
"status": "affected"
},
{
"version": "3.16.7S",
"status": "affected"
},
{
"version": "3.16.6bS",
"status": "affected"
},
{
"version": "3.16.7aS",
"status": "affected"
},
{
"version": "3.16.7bS",
"status": "affected"
},
{
"version": "3.16.8S",
"status": "affected"
},
{
"version": "3.16.9S",
"status": "affected"
},
{
"version": "3.16.10S",
"status": "affected"
},
{
"version": "3.17.0S",
"status": "affected"
},
{
"version": "3.17.1S",
"status": "affected"
},
{
"version": "3.17.2S",
"status": "affected"
},
{
"version": "3.17.1aS",
"status": "affected"
},
{
"version": "3.17.3S",
"status": "affected"
},
{
"version": "3.17.4S",
"status": "affected"
},
{
"version": "16.2.1",
"status": "affected"
},
{
"version": "16.2.2",
"status": "affected"
},
{
"version": "16.3.1",
"status": "affected"
},
{
"version": "16.3.2",
"status": "affected"
},
{
"version": "16.3.3",
"status": "affected"
},
{
"version": "16.3.1a",
"status": "affected"
},
{
"version": "16.3.4",
"status": "affected"
},
{
"version": "16.3.5",
"status": "affected"
},
{
"version": "16.3.6",
"status": "affected"
},
{
"version": "16.3.7",
"status": "affected"
},
{
"version": "16.3.8",
"status": "affected"
},
{
"version": "16.3.9",
"status": "affected"
},
{
"version": "16.3.10",
"status": "affected"
},
{
"version": "16.3.11",
"status": "affected"
},
{
"version": "16.4.1",
"status": "affected"
},
{
"version": "16.4.2",
"status": "affected"
},
{
"version": "16.4.3",
"status": "affected"
},
{
"version": "16.5.1",
"status": "affected"
},
{
"version": "16.5.1b",
"status": "affected"
},
{
"version": "16.5.2",
"status": "affected"
},
{
"version": "16.5.3",
"status": "affected"
},
{
"version": "16.6.1",
"status": "affected"
},
{
"version": "16.6.2",
"status": "affected"
},
{
"version": "16.6.3",
"status": "affected"
},
{
"version": "16.6.4",
"status": "affected"
},
{
"version": "16.6.5",
"status": "affected"
},
{
"version": "16.6.6",
"status": "affected"
},
{
"version": "16.6.7",
"status": "affected"
},
{
"version": "16.6.8",
"status": "affected"
},
{
"version": "16.6.9",
"status": "affected"
},
{
"version": "16.6.10",
"status": "affected"
},
{
"version": "16.7.1",
"status": "affected"
},
{
"version": "16.7.2",
"status": "affected"
},
{
"version": "16.7.3",
"status": "affected"
},
{
"version": "16.8.1",
"status": "affected"
},
{
"version": "16.8.1s",
"status": "affected"
},
{
"version": "16.8.2",
"status": "affected"
},
{
"version": "16.8.3",
"status": "affected"
},
{
"version": "16.9.1",
"status": "affected"
},
{
"version": "16.9.2",
"status": "affected"
},
{
"version": "16.9.1s",
"status": "affected"
},
{
"version": "16.9.3",
"status": "affected"
},
{
"version": "16.9.4",
"status": "affected"
},
{
"version": "16.9.5",
"status": "affected"
},
{
"version": "16.9.6",
"status": "affected"
},
{
"version": "16.9.7",
"status": "affected"
},
{
"version": "16.9.8",
"status": "affected"
},
{
"version": "16.10.1",
"status": "affected"
},
{
"version": "16.10.1a",
"status": "affected"
},
{
"version": "16.10.1s",
"status": "affected"
},
{
"version": "16.10.1e",
"status": "affected"
},
{
"version": "16.10.2",
"status": "affected"
},
{
"version": "16.10.3",
"status": "affected"
},
{
"version": "16.11.1",
"status": "affected"
},
{
"version": "16.11.1a",
"status": "affected"
},
{
"version": "16.11.2",
"status": "affected"
},
{
"version": "16.11.1s",
"status": "affected"
},
{
"version": "16.12.1",
"status": "affected"
},
{
"version": "16.12.1s",
"status": "affected"
},
{
"version": "16.12.1a",
"status": "affected"
},
{
"version": "16.12.1c",
"status": "affected"
},
{
"version": "16.12.2",
"status": "affected"
},
{
"version": "16.12.3",
"status": "affected"
},
{
"version": "16.12.8",
"status": "affected"
},
{
"version": "16.12.2s",
"status": "affected"
},
{
"version": "16.12.4",
"status": "affected"
},
{
"version": "16.12.3s",
"status": "affected"
},
{
"version": "16.12.5",
"status": "affected"
},
{
"version": "16.12.6",
"status": "affected"
},
{
"version": "16.12.7",
"status": "affected"
},
{
"version": "16.12.10a",
"status": "affected"
},
{
"version": "17.1.1",
"status": "affected"
},
{
"version": "17.1.1s",
"status": "affected"
},
{
"version": "17.1.1t",
"status": "affected"
},
{
"version": "17.1.3",
"status": "affected"
},
{
"version": "17.2.1",
"status": "affected"
},
{
"version": "17.2.1r",
"status": "affected"
},
{
"version": "17.2.1v",
"status": "affected"
},
{
"version": "17.2.2",
"status": "affected"
},
{
"version": "17.2.3",
"status": "affected"
},
{
"version": "17.3.1",
"status": "affected"
},
{
"version": "17.3.2",
"status": "affected"
},
{
"version": "17.3.3",
"status": "affected"
},
{
"version": "17.3.1a",
"status": "affected"
},
{
"version": "17.3.4",
"status": "affected"
},
{
"version": "17.3.5",
"status": "affected"
},
{
"version": "17.3.4a",
"status": "affected"
},
{
"version": "17.3.6",
"status": "affected"
},
{
"version": "17.3.7",
"status": "affected"
},
{
"version": "17.4.1",
"status": "affected"
},
{
"version": "17.4.2",
"status": "affected"
},
{
"version": "17.4.1a",
"status": "affected"
},
{
"version": "17.4.1b",
"status": "affected"
},
{
"version": "17.5.1",
"status": "affected"
},
{
"version": "17.5.1a",
"status": "affected"
},
{
"version": "17.5.1b",
"status": "affected"
},
{
"version": "17.5.1c",
"status": "affected"
},
{
"version": "17.6.1",
"status": "affected"
},
{
"version": "17.6.2",
"status": "affected"
},
{
"version": "17.6.1a",
"status": "affected"
},
{
"version": "17.6.3",
"status": "affected"
},
{
"version": "17.6.3a",
"status": "affected"
},
{
"version": "17.6.4",
"status": "affected"
},
{
"version": "17.6.5",
"status": "affected"
},
{
"version": "17.6.5a",
"status": "affected"
},
{
"version": "17.7.1",
"status": "affected"
},
{
"version": "17.7.1a",
"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",
"status": "affected"
}
]
}
]Related
cve
cve
CVE-2023-20187
2023-09-27 18:15:11
cisco
cisco
nvd
nvd
CVE-2023-20187
2023-09-27 18:15:11
prion
prion
Race condition
2023-09-27 18:15:00
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
8.7 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
27.0%
Related for CVELIST:CVE-2023-20187