Main Vulnerability Database Vulnerabilities #VU86913

Resource exhaustion in Cisco Systems, Inc products - CVE-2024-20321

Published: February 29, 2024

Vulnerability identifier: #VU86913

CSH Severity: High

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-20321

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to application does not properly control consumption of internal resources in the External Border Gateway Protocol (eBGP) implementation. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Affected software

Cisco Nexus 9500 R-Series
Cisco Nexus 3600 Platform Switches
Cisco NX-OS

How to mitigate CVE-2024-20321

Install update from vendor's website.

Cisco NX-OS - addressed in versions 9.3(13), 10.2(7), 10.4(2)

External References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ebgp-dos-L3QCwVJ

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