Cisco Cisco NX-OS Software

CVE-2024-20294
MEDIUM 6.6

At a glance

Source
NVD
EPSS
EPSS 0.32 % Β· percentile 25 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Analyzed

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).

Weaknesses (CWE)

  • CWE-805 β€” Buffer Access with Incorrect Length Value

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.6CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:Hcisco
CVSS 3.1MEDIUM 6.6CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:HNVD Β· psirt@cisco.com (Secondary)
CVSS 3.1MEDIUM 6.6CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:HNVD Β· nvd@nist.gov (Primary)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco Β· Cisco NX-OS Softwareaffected 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)
Cisco Β· Cisco Unified Computing System (Managed)affected 3.1(1e) ; affected 3.1(1g) ; affected 3.1(1h) ; affected 3.1(1k) ; affected 3.1(1l) ; affected 3.1(2b)
Cisco Β· Cisco Firepower Extensible Operating System (FXOS)affected 2.2.1.63 ; affected 2.2.1.66 ; affected 2.2.1.70 ; affected 2.2.2.17 ; affected 2.2.2.19 ; affected 2.2.2.24
Cisco Β· Cisco NX-OS System Software in ACI Modeaffected 12.0(1m) ; affected 12.0(2g) ; affected 12.0(1n) ; affected 12.0(1o) ; affected 12.0(1p) ; affected 12.0(1q)

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST β€” attribution requested
ENISA EUVDENISA β€” reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain β€” this product uses data from the NVD API but is not endorsed or certified by the NVD