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6.6 Medium

CVE-2024-20294 A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco FXOS Software and Cisco NX-OS Software…

Description

A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of specific fields in an LLDP frame. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface of an affected device and having an authenticated user retrieve LLDP statistics from the affected device through CLI show commands or Simple Network Management Protocol (SNMP) requests. A successful exploit could allow the attacker to cause the LLDP service to crash and stop running on the affected device. In certain situations, the LLDP crash may result in a reload of the affected device. Note: LLDP is a Layer 2 link protocol. To exploit this vulnerability, an attacker would need to be directly connected to an interface of an affected device, either physically or logically (for example, through a Layer 2 Tunnel configured to transport the LLDP protocol).

Affected products and versions

Product Affected versions Fixed in
Cisco NX-OS Software Versions not published
Cisco Unified Computing System (Managed) Versions not published
Cisco Firepower Extensible Operating System (FXOS) 2.14.1.131 No fix stated
Cisco Firepower Extensible Operating System (FXOS) 2.13 2.13.0.198 → 2.13.0.243 No fix stated
Cisco Firepower Extensible Operating System (FXOS) 2.12 2.12.0.31 → 2.12.1.48 No fix stated
Cisco Firepower Extensible Operating System (FXOS) 2.11 2.11.1.154 → 2.11.1.205 No fix stated
Cisco Firepower Extensible Operating System (FXOS) 2.10 2.10.1.159 → 2.10.1.271 No fix stated
Cisco Firepower Extensible Operating System (FXOS) 2.9 2.9.1.131 → 2.9.1.158 No fix stated
Cisco Firepower Extensible Operating System (FXOS) 2.8 2.8.1.105 → 2.8.1.198 No fix stated
Show the 4 other branches
Product Affected versions Fixed in
Cisco Firepower Extensible Operating System (FXOS) 2.6 2.6.1.131 → 2.6.1.265 No fix stated
Cisco Firepower Extensible Operating System (FXOS) 2.3 2.3.1.56 → 2.3.1.230 No fix stated
Cisco Firepower Extensible Operating System (FXOS) 2.2 2.2.1.63 → 2.2.2.149 No fix stated
Cisco NX-OS System Software in ACI Mode Versions not published

References

Timeline

  1. Published
  2. Last modified

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