CVE-2024-20267 (GCVE-0-2024-20267)
Vulnerability from cvelistv5 – Published: 2024-02-28 16:15 – Updated: 2024-08-28 14:13
VLAI?
Summary
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.
Severity ?
8.6 (High)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
6.0(2)A3(1)
Affected: 6.0(2)A3(2) Affected: 6.0(2)A3(4) Affected: 6.0(2)A4(1) Affected: 6.0(2)A4(2) Affected: 6.0(2)A4(3) Affected: 6.0(2)A4(4) Affected: 6.0(2)A4(5) Affected: 6.0(2)A4(6) Affected: 6.0(2)A6(1) Affected: 6.0(2)A6(1a) Affected: 6.0(2)A6(2) Affected: 6.0(2)A6(2a) Affected: 6.0(2)A6(3) Affected: 6.0(2)A6(3a) Affected: 6.0(2)A6(4) Affected: 6.0(2)A6(4a) Affected: 6.0(2)A6(5) Affected: 6.0(2)A6(5a) Affected: 6.0(2)A6(5b) Affected: 6.0(2)A6(6) Affected: 6.0(2)A6(7) Affected: 6.0(2)A6(8) Affected: 6.0(2)A7(1) Affected: 6.0(2)A7(1a) Affected: 6.0(2)A7(2) Affected: 6.0(2)A7(2a) Affected: 6.0(2)A8(1) Affected: 6.0(2)A8(2) Affected: 6.0(2)A8(3) Affected: 6.0(2)A8(4) Affected: 6.0(2)A8(4a) Affected: 6.0(2)A8(5) Affected: 6.0(2)A8(6) Affected: 6.0(2)A8(7) Affected: 6.0(2)A8(7a) Affected: 6.0(2)A8(7b) Affected: 6.0(2)A8(8) Affected: 6.0(2)A8(9) Affected: 6.0(2)A8(10a) Affected: 6.0(2)A8(10) Affected: 6.0(2)A8(11) Affected: 6.0(2)A8(11a) Affected: 6.0(2)A8(11b) Affected: 6.0(2)U2(1) Affected: 6.0(2)U2(2) Affected: 6.0(2)U2(3) Affected: 6.0(2)U2(4) Affected: 6.0(2)U2(5) Affected: 6.0(2)U2(6) Affected: 6.0(2)U3(1) Affected: 6.0(2)U3(2) Affected: 6.0(2)U3(3) Affected: 6.0(2)U3(4) Affected: 6.0(2)U3(5) Affected: 6.0(2)U3(6) Affected: 6.0(2)U3(7) Affected: 6.0(2)U3(8) Affected: 6.0(2)U3(9) Affected: 6.0(2)U4(1) Affected: 6.0(2)U4(2) Affected: 6.0(2)U4(3) Affected: 6.0(2)U4(4) Affected: 6.0(2)U5(1) Affected: 6.0(2)U5(2) Affected: 6.0(2)U5(3) Affected: 6.0(2)U5(4) Affected: 6.0(2)U6(1) Affected: 6.0(2)U6(2) Affected: 6.0(2)U6(3) Affected: 6.0(2)U6(4) Affected: 6.0(2)U6(5) Affected: 6.0(2)U6(6) Affected: 6.0(2)U6(7) Affected: 6.0(2)U6(8) Affected: 6.0(2)U6(1a) Affected: 6.0(2)U6(2a) Affected: 6.0(2)U6(3a) Affected: 6.0(2)U6(4a) Affected: 6.0(2)U6(5a) Affected: 6.0(2)U6(5b) Affected: 6.0(2)U6(5c) Affected: 6.0(2)U6(9) Affected: 6.0(2)U6(10) Affected: 6.2(2) Affected: 6.2(2a) Affected: 6.2(6) Affected: 6.2(6b) Affected: 6.2(8) Affected: 6.2(8a) Affected: 6.2(8b) Affected: 6.2(10) Affected: 6.2(12) Affected: 6.2(18) Affected: 6.2(16) Affected: 6.2(14) Affected: 6.2(6a) Affected: 6.2(20) Affected: 6.2(20a) Affected: 6.2(22) Affected: 6.2(24) Affected: 6.2(24a) Affected: 7.0(3)F1(1) Affected: 7.0(3)F2(1) Affected: 7.0(3)F2(2) Affected: 7.0(3)F3(1) Affected: 7.0(3)F3(2) Affected: 7.0(3)F3(3) Affected: 7.0(3)F3(3a) Affected: 7.0(3)F3(4) Affected: 7.0(3)F3(3c) Affected: 7.0(3)F3(5) Affected: 7.0(3)I2(2a) Affected: 7.0(3)I2(2b) Affected: 7.0(3)I2(2c) Affected: 7.0(3)I2(2d) Affected: 7.0(3)I2(2e) Affected: 7.0(3)I2(3) Affected: 7.0(3)I2(4) Affected: 7.0(3)I2(5) Affected: 7.0(3)I2(1) Affected: 7.0(3)I2(1a) Affected: 7.0(3)I2(2) Affected: 7.0(3)I3(1) Affected: 7.0(3)I4(1) Affected: 7.0(3)I4(2) Affected: 7.0(3)I4(3) Affected: 7.0(3)I4(4) Affected: 7.0(3)I4(5) Affected: 7.0(3)I4(6) Affected: 7.0(3)I4(7) Affected: 7.0(3)I4(8) Affected: 7.0(3)I4(8a) Affected: 7.0(3)I4(8b) Affected: 7.0(3)I4(8z) Affected: 7.0(3)I4(9) Affected: 7.0(3)I5(1) Affected: 7.0(3)I5(2) Affected: 7.0(3)I6(1) Affected: 7.0(3)I6(2) Affected: 7.0(3)I7(1) Affected: 7.0(3)I7(2) Affected: 7.0(3)I7(3) Affected: 7.0(3)I7(4) Affected: 7.0(3)I7(5) Affected: 7.0(3)I7(5a) Affected: 7.0(3)I7(6) Affected: 7.0(3)I7(7) Affected: 7.0(3)I7(8) Affected: 7.0(3)I7(9) Affected: 7.0(3)I7(10) Affected: 7.1(0)N1(1a) Affected: 7.1(0)N1(1b) Affected: 7.1(0)N1(1) Affected: 7.1(1)N1(1) Affected: 7.1(2)N1(1) Affected: 7.1(3)N1(1) Affected: 7.1(3)N1(2) Affected: 7.1(4)N1(1) Affected: 7.1(5)N1(1) Affected: 7.1(5)N1(1b) Affected: 7.2(0)D1(1) Affected: 7.2(1)D1(1) Affected: 7.2(2)D1(2) Affected: 7.2(2)D1(1) Affected: 7.3(0)D1(1) Affected: 7.3(0)DX(1) Affected: 7.3(0)N1(1) Affected: 9.2(1) Affected: 9.2(2) Affected: 9.2(2t) Affected: 9.2(3) Affected: 9.2(4) Affected: 9.2(2v) Affected: 9.3(1) Affected: 9.3(2) Affected: 9.3(3) Affected: 9.3(4) Affected: 9.3(5) Affected: 9.3(6) Affected: 9.3(7) Affected: 9.3(7a) Affected: 9.3(8) Affected: 9.3(9) Affected: 9.3(10) Affected: 9.3(11) Affected: 9.3(12) Affected: 10.1(1) Affected: 10.1(2) Affected: 10.1(2t) Affected: 10.2(1) Affected: 10.2(1q) Affected: 10.2(2) Affected: 10.2(3) Affected: 10.2(3t) Affected: 10.2(4) Affected: 10.2(5) Affected: 10.2(3v) Affected: 10.2(6) Affected: 10.3(1) Affected: 10.3(2) Affected: 10.3(3) Affected: 10.3(99w) Affected: 10.3(99x) Affected: 10.4(1) |
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unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload. \\r\\n\\r 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.\\r\\n\\r 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-120\", \"description\": \"Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2024-02-28T16:15:18.044Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-20267\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-28T14:13:57.631Z\", \"dateReserved\": \"2023-11-08T15:08:07.624Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2024-02-28T16:15:18.044Z\", \"assignerShortName\": \"cisco\"}",
"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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