#VU86915 Buffer overflow in Cisco Systems, Inc products - CVE-2024-20294

Vulnerability identifier: #VU86915

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2024-20294

CWE-ID: CWE-119

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerable software:
Cisco FXOS
Cisco NX-OS
Firepower 4100 Series Security Appliances
Cisco MDS 9000 Series Multilayer Switches
UCS 6500 Series Fabric Interconnects
UCS 6400 Series Fabric Interconnects
UCS 6300 Series Fabric Interconnects
UCS 6200 Series Fabric Interconnects
Cisco Nexus 9000 Series Switches NX-OS Mode
Cisco Nexus 9000 Series Switches in ACI Mode
Nexus 7000 Series Switches
Nexus 6000 Series Switches
Nexus 5600 Platform Switches
Nexus 5500 Platform Switches
Cisco Nexus 3000 Series Switches
Cisco Firepower 9300 Security Appliance

Software vendor:
Cisco Systems, Inc

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the Link Layer Discovery Protocol (LLDP) feature. A remote attacker on the local network can trigger memory corruption and cause a denial of service condition on the target system.

Install update from vendor's website.

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-lldp-dos-z7PncTgt
• https://www.dell.com/support/kbdoc/nl-nl/000224066/dsa-2024-154-security-update-for-dell-connectrix-nx-os-sw-and-mds-9000-switches-link-layer-discovery-protocol-lldp-vulnerabilities