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HistoryFeb 29, 2024 - 1:43 a.m.
CVE-2024-20267
mpls handling
remote attacker
dos condition
ipv6 packet
network traffic
error checking
nx-os device
CVSS3
8.6
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
AI Score
8.5
Confidence
High
EPSS
0.001
Percentile
17.0%
A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload.
This vulnerability is due to lack of proper error checking when processing an ingress MPLS frame. An attacker could exploit this vulnerability by sending a crafted IPv6 packet that is encapsulated within an MPLS frame to an MPLS-enabled interface of the targeted device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition.
Note: The IPv6 packet can be generated multiple hops away from the targeted device and then encapsulated within MPLS. The DoS condition may occur when the NX-OS device processes the packet.
Affected configurations
Node
cisconx-osMatch6.0\(2\)a3\(1\)
ORcisconx-osMatch6.0\(2\)a3\(2\)
ORcisconx-osMatch6.0\(2\)a3\(4\)
ORcisconx-osMatch6.0\(2\)a4\(1\)
ORcisconx-osMatch6.0\(2\)a4\(2\)
ORcisconx-osMatch6.0\(2\)a4\(3\)
ORcisconx-osMatch6.0\(2\)a4\(4\)
ORcisconx-osMatch6.0\(2\)a4\(5\)
ORcisconx-osMatch6.0\(2\)a4\(6\)
ORcisconx-osMatch6.0\(2\)a6\(1\)
ORcisconx-osMatch6.0\(2\)a6\(1a\)
ORcisconx-osMatch6.0\(2\)a6\(2\)
ORcisconx-osMatch6.0\(2\)a6\(2a\)
ORcisconx-osMatch6.0\(2\)a6\(3\)
ORcisconx-osMatch6.0\(2\)a6\(3a\)
ORcisconx-osMatch6.0\(2\)a6\(4\)
ORcisconx-osMatch6.0\(2\)a6\(4a\)
ORcisconx-osMatch6.0\(2\)a6\(5\)
ORcisconx-osMatch6.0\(2\)a6\(5a\)
ORcisconx-osMatch6.0\(2\)a6\(5b\)
ORcisconx-osMatch6.0\(2\)a6\(6\)
ORcisconx-osMatch6.0\(2\)a6\(7\)
ORcisconx-osMatch6.0\(2\)a6\(8\)
ORcisconx-osMatch6.0\(2\)a7\(1\)
ORcisconx-osMatch6.0\(2\)a7\(1a\)
ORcisconx-osMatch6.0\(2\)a7\(2\)
ORcisconx-osMatch6.0\(2\)a7\(2a\)
ORcisconx-osMatch6.0\(2\)a8\(1\)
ORcisconx-osMatch6.0\(2\)a8\(2\)
ORcisconx-osMatch6.0\(2\)a8\(3\)
ORcisconx-osMatch6.0\(2\)a8\(4\)
ORcisconx-osMatch6.0\(2\)a8\(4a\)
ORcisconx-osMatch6.0\(2\)a8\(5\)
ORcisconx-osMatch6.0\(2\)a8\(6\)
ORcisconx-osMatch6.0\(2\)a8\(7\)
ORcisconx-osMatch6.0\(2\)a8\(7a\)
ORcisconx-osMatch6.0\(2\)a8\(7b\)
ORcisconx-osMatch6.0\(2\)a8\(8\)
ORcisconx-osMatch6.0\(2\)a8\(9\)
ORcisconx-osMatch6.0\(2\)a8\(10\)
ORcisconx-osMatch6.0\(2\)a8\(10a\)
ORcisconx-osMatch6.0\(2\)a8\(11\)
ORcisconx-osMatch6.0\(2\)a8\(11a\)
ORcisconx-osMatch6.0\(2\)a8\(11b\)
ORcisconx-osMatch6.0\(2\)u2\(1\)
ORcisconx-osMatch6.0\(2\)u2\(2\)
ORcisconx-osMatch6.0\(2\)u2\(3\)
ORcisconx-osMatch6.0\(2\)u2\(4\)
ORcisconx-osMatch6.0\(2\)u2\(5\)
ORcisconx-osMatch6.0\(2\)u2\(6\)
ORcisconx-osMatch6.0\(2\)u3\(1\)
ORcisconx-osMatch6.0\(2\)u3\(2\)
ORcisconx-osMatch6.0\(2\)u3\(3\)
ORcisconx-osMatch6.0\(2\)u3\(4\)
ORcisconx-osMatch6.0\(2\)u3\(5\)
ORcisconx-osMatch6.0\(2\)u3\(6\)
ORcisconx-osMatch6.0\(2\)u3\(7\)
ORcisconx-osMatch6.0\(2\)u3\(8\)
ORcisconx-osMatch6.0\(2\)u3\(9\)
ORcisconx-osMatch6.0\(2\)u4\(1\)
ORcisconx-osMatch6.0\(2\)u4\(2\)
ORcisconx-osMatch6.0\(2\)u4\(3\)
ORcisconx-osMatch6.0\(2\)u4\(4\)
ORcisconx-osMatch6.0\(2\)u5\(1\)
ORcisconx-osMatch6.0\(2\)u5\(2\)
ORcisconx-osMatch6.0\(2\)u5\(3\)
ORcisconx-osMatch6.0\(2\)u5\(4\)
ORcisconx-osMatch6.0\(2\)u6\(1\)
ORcisconx-osMatch6.0\(2\)u6\(1a\)
ORcisconx-osMatch6.0\(2\)u6\(2\)
ORcisconx-osMatch6.0\(2\)u6\(2a\)
ORcisconx-osMatch6.0\(2\)u6\(3\)
ORcisconx-osMatch6.0\(2\)u6\(3a\)
ORcisconx-osMatch6.0\(2\)u6\(4\)
ORcisconx-osMatch6.0\(2\)u6\(4a\)
ORcisconx-osMatch6.0\(2\)u6\(5\)
ORcisconx-osMatch6.0\(2\)u6\(5a\)
ORcisconx-osMatch6.0\(2\)u6\(5b\)
ORcisconx-osMatch6.0\(2\)u6\(5c\)
ORcisconx-osMatch6.0\(2\)u6\(6\)
ORcisconx-osMatch6.0\(2\)u6\(7\)
ORcisconx-osMatch6.0\(2\)u6\(8\)
ORcisconx-osMatch6.0\(2\)u6\(9\)
ORcisconx-osMatch6.0\(2\)u6\(10\)
ORcisconx-osMatch6.2\(2\)
ORcisconx-osMatch6.2\(2a\)
ORcisconx-osMatch6.2\(6\)
ORcisconx-osMatch6.2\(6a\)
ORcisconx-osMatch6.2\(6b\)
ORcisconx-osMatch6.2\(8\)
ORcisconx-osMatch6.2\(8a\)
ORcisconx-osMatch6.2\(8b\)
ORcisconx-osMatch6.2\(10\)
ORcisconx-osMatch6.2\(12\)
ORcisconx-osMatch6.2\(14\)
ORcisconx-osMatch6.2\(16\)
ORcisconx-osMatch6.2\(18\)
ORcisconx-osMatch6.2\(20\)
ORcisconx-osMatch6.2\(20a\)
ORcisconx-osMatch6.2\(22\)
ORcisconx-osMatch6.2\(24\)
ORcisconx-osMatch6.2\(24a\)
ORcisconx-osMatch7.0\(3\)f1\(1\)
ORcisconx-osMatch7.0\(3\)f2\(1\)
ORcisconx-osMatch7.0\(3\)f2\(2\)
ORcisconx-osMatch7.0\(3\)f3\(1\)
ORcisconx-osMatch7.0\(3\)f3\(2\)
ORcisconx-osMatch7.0\(3\)f3\(3\)
ORcisconx-osMatch7.0\(3\)f3\(3a\)
ORcisconx-osMatch7.0\(3\)f3\(3c\)
ORcisconx-osMatch7.0\(3\)f3\(4\)
ORcisconx-osMatch7.0\(3\)f3\(5\)
ORcisconx-osMatch7.0\(3\)i2\(1\)
ORcisconx-osMatch7.0\(3\)i2\(1a\)
ORcisconx-osMatch7.0\(3\)i2\(2\)
ORcisconx-osMatch7.0\(3\)i2\(2a\)
ORcisconx-osMatch7.0\(3\)i2\(2b\)
ORcisconx-osMatch7.0\(3\)i2\(2c\)
ORcisconx-osMatch7.0\(3\)i2\(2d\)
ORcisconx-osMatch7.0\(3\)i2\(2e\)
ORcisconx-osMatch7.0\(3\)i2\(3\)
ORcisconx-osMatch7.0\(3\)i2\(4\)
ORcisconx-osMatch7.0\(3\)i2\(5\)
ORcisconx-osMatch7.0\(3\)i3\(1\)
ORcisconx-osMatch7.0\(3\)i4\(1\)
ORcisconx-osMatch7.0\(3\)i4\(2\)
ORcisconx-osMatch7.0\(3\)i4\(3\)
ORcisconx-osMatch7.0\(3\)i4\(4\)
ORcisconx-osMatch7.0\(3\)i4\(5\)
ORcisconx-osMatch7.0\(3\)i4\(6\)
ORcisconx-osMatch7.0\(3\)i4\(7\)
ORcisconx-osMatch7.0\(3\)i4\(8\)
ORcisconx-osMatch7.0\(3\)i4\(8a\)
ORcisconx-osMatch7.0\(3\)i4\(8b\)
ORcisconx-osMatch7.0\(3\)i4\(8z\)
ORcisconx-osMatch7.0\(3\)i4\(9\)
ORcisconx-osMatch7.0\(3\)i5\(1\)
ORcisconx-osMatch7.0\(3\)i5\(2\)
ORcisconx-osMatch7.0\(3\)i6\(1\)
ORcisconx-osMatch7.0\(3\)i6\(2\)
ORcisconx-osMatch7.0\(3\)i7\(1\)
ORcisconx-osMatch7.0\(3\)i7\(2\)
ORcisconx-osMatch7.0\(3\)i7\(3\)
ORcisconx-osMatch7.0\(3\)i7\(4\)
ORcisconx-osMatch7.0\(3\)i7\(5\)
ORcisconx-osMatch7.0\(3\)i7\(5a\)
ORcisconx-osMatch7.0\(3\)i7\(6\)
ORcisconx-osMatch7.0\(3\)i7\(7\)
ORcisconx-osMatch7.0\(3\)i7\(8\)
ORcisconx-osMatch7.0\(3\)i7\(9\)
ORcisconx-osMatch7.0\(3\)i7\(10\)
ORcisconx-osMatch7.1\(0\)n1\(1\)
ORcisconx-osMatch7.1\(0\)n1\(1a\)
ORcisconx-osMatch7.1\(0\)n1\(1b\)
ORcisconx-osMatch7.1\(1\)n1\(1\)
ORcisconx-osMatch7.1\(2\)n1\(1\)
ORcisconx-osMatch7.1\(3\)n1\(1\)
ORcisconx-osMatch7.1\(3\)n1\(2\)
ORcisconx-osMatch7.1\(4\)n1\(1\)
ORcisconx-osMatch7.1\(5\)n1\(1\)
ORcisconx-osMatch7.1\(5\)n1\(1b\)
ORcisconx-osMatch7.2\(0\)d1\(1\)
ORcisconx-osMatch7.2\(1\)d1\(1\)
ORcisconx-osMatch7.2\(2\)d1\(1\)
ORcisconx-osMatch7.2\(2\)d1\(2\)
ORcisconx-osMatch7.3\(0\)d1\(1\)
ORcisconx-osMatch7.3\(0\)dx\(1\)
ORcisconx-osMatch7.3\(0\)n1\(1\)
ORcisconx-osMatch9.2\(1\)
ORcisconx-osMatch9.2\(2\)
ORcisconx-osMatch9.2\(2t\)
ORcisconx-osMatch9.2\(2v\)
ORcisconx-osMatch9.2\(3\)
ORcisconx-osMatch9.2\(4\)
ORcisconx-osMatch9.3\(1\)
ORcisconx-osMatch9.3\(2\)
ORcisconx-osMatch9.3\(3\)
ORcisconx-osMatch9.3\(4\)
ORcisconx-osMatch9.3\(5\)
ORcisconx-osMatch9.3\(6\)
ORcisconx-osMatch9.3\(7\)
ORcisconx-osMatch9.3\(7a\)
ORcisconx-osMatch9.3\(8\)
ORcisconx-osMatch9.3\(9\)
ORcisconx-osMatch9.3\(10\)
ORcisconx-osMatch9.3\(11\)
ORcisconx-osMatch9.3\(12\)
ORcisconx-osMatch10.1\(1\)
ORcisconx-osMatch10.1\(2\)
ORcisconx-osMatch10.1\(2t\)
ORcisconx-osMatch10.2\(1\)
ORcisconx-osMatch10.2\(1q\)
ORcisconx-osMatch10.2\(2\)
ORcisconx-osMatch10.2\(3\)
ORcisconx-osMatch10.2\(3t\)
ORcisconx-osMatch10.2\(3v\)
ORcisconx-osMatch10.2\(4\)
ORcisconx-osMatch10.2\(5\)
ORcisconx-osMatch10.2\(6\)
ORcisconx-osMatch10.3\(1\)
ORcisconx-osMatch10.3\(2\)
ORcisconx-osMatch10.3\(3\)
ORcisconx-osMatch10.3\(99w\)
ORcisconx-osMatch10.3\(99x\)
ORcisconx-osMatch10.4\(1\)
| Vendor | Product | Version | CPE |
|---|---|---|---|
| cisco | nx-os | 6.0(2)a3(1) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a3\(1\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a3(2) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a3\(2\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a3(4) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a3\(4\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a4(1) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a4\(1\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a4(2) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a4\(2\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a4(3) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a4\(3\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a4(4) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a4\(4\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a4(5) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a4\(5\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a4(6) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a4\(6\):*:*:*:*:*:*:* |
| cisco | nx-os | 6.0(2)a6(1) | cpe:2.3:o:cisco:nx-os:6.0\(2\)a6\(1\):*:*:*:*:*:*:* |
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Cisco NX-OS Software MPLS Encapsulated IPv6 Denial of Service Vulnerability
2024-02-28 16:00:00
CVSS3
8.6
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
AI Score
8.5
Confidence
High
EPSS
0.001
Percentile
17.0%
Related for NVD:CVE-2024-20267