CVE-2024-20339

Summary

A vulnerability in the TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

This vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition and impacting traffic to and through the affected device.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco Firepower Threat Defense Software6.2.3affected
CiscoCisco Firepower Threat Defense Software6.2.3.9affected
CiscoCisco Firepower Threat Defense Software6.2.3.1affected
CiscoCisco Firepower Threat Defense Software6.2.3.2affected
CiscoCisco Firepower Threat Defense Software6.2.3.10affected
CiscoCisco Firepower Threat Defense Software6.4.0affected
CiscoCisco Firepower Threat Defense Software6.4.0.3affected
CiscoCisco Firepower Threat Defense Software6.4.0.4affected
CiscoCisco Firepower Threat Defense Software6.2.3.15affected
CiscoCisco Firepower Threat Defense Software6.2.3.6affected
CiscoCisco Firepower Threat Defense Software6.2.3.7affected
CiscoCisco Firepower Threat Defense Software6.2.3.12affected
CiscoCisco Firepower Threat Defense Software6.2.3.3affected
CiscoCisco Firepower Threat Defense Software6.2.3.11affected
CiscoCisco Firepower Threat Defense Software6.4.0.6affected
CiscoCisco Firepower Threat Defense Software6.2.3.13affected
CiscoCisco Firepower Threat Defense Software6.2.3.8affected
CiscoCisco Firepower Threat Defense Software6.2.3.4affected
CiscoCisco Firepower Threat Defense Software6.4.0.1affected
CiscoCisco Firepower Threat Defense Software6.2.3.5affected
CiscoCisco Firepower Threat Defense Software6.4.0.5affected
CiscoCisco Firepower Threat Defense Software6.2.3.14affected
CiscoCisco Firepower Threat Defense Software6.4.0.2affected
CiscoCisco Firepower Threat Defense Software6.4.0.8affected
CiscoCisco Firepower Threat Defense Software6.4.0.7affected
CiscoCisco Firepower Threat Defense Software6.6.0affected
CiscoCisco Firepower Threat Defense Software6.4.0.9affected
CiscoCisco Firepower Threat Defense Software6.2.3.16affected
CiscoCisco Firepower Threat Defense Software6.6.0.1affected
CiscoCisco Firepower Threat Defense Software6.6.1affected
CiscoCisco Firepower Threat Defense Software6.4.0.10affected
CiscoCisco Firepower Threat Defense Software6.7.0affected
CiscoCisco Firepower Threat Defense Software6.4.0.11affected
CiscoCisco Firepower Threat Defense Software6.6.3affected
CiscoCisco Firepower Threat Defense Software6.7.0.1affected
CiscoCisco Firepower Threat Defense Software6.6.4affected
CiscoCisco Firepower Threat Defense Software6.4.0.12affected
CiscoCisco Firepower Threat Defense Software6.7.0.2affected
CiscoCisco Firepower Threat Defense Software7.0.0affected
CiscoCisco Firepower Threat Defense Software6.2.3.17affected
CiscoCisco Firepower Threat Defense Software7.0.0.1affected
CiscoCisco Firepower Threat Defense Software6.6.5affected
CiscoCisco Firepower Threat Defense Software7.0.1affected
CiscoCisco Firepower Threat Defense Software7.1.0affected
CiscoCisco Firepower Threat Defense Software6.4.0.13affected
CiscoCisco Firepower Threat Defense Software6.6.5.1affected
CiscoCisco Firepower Threat Defense Software6.2.3.18affected
CiscoCisco Firepower Threat Defense Software7.0.1.1affected
CiscoCisco Firepower Threat Defense Software6.7.0.3affected
CiscoCisco Firepower Threat Defense Software6.4.0.14affected
CiscoCisco Firepower Threat Defense Software7.1.0.1affected
CiscoCisco Firepower Threat Defense Software6.6.5.2affected
CiscoCisco Firepower Threat Defense Software7.0.2affected
CiscoCisco Firepower Threat Defense Software6.4.0.15affected
CiscoCisco Firepower Threat Defense Software7.2.0affected
CiscoCisco Firepower Threat Defense Software7.0.2.1affected
CiscoCisco Firepower Threat Defense Software7.0.3affected
CiscoCisco Firepower Threat Defense Software6.6.7affected
CiscoCisco Firepower Threat Defense Software7.2.0.1affected
CiscoCisco Firepower Threat Defense Software7.0.4affected
CiscoCisco Firepower Threat Defense Software7.2.1affected
CiscoCisco Firepower Threat Defense Software7.0.5affected
CiscoCisco Firepower Threat Defense Software6.4.0.16affected
CiscoCisco Firepower Threat Defense Software7.3.0affected
CiscoCisco Firepower Threat Defense Software7.2.2affected
CiscoCisco Firepower Threat Defense Software6.6.7.1affected
CiscoCisco Firepower Threat Defense Software7.2.3affected
CiscoCisco Firepower Threat Defense Software7.3.1affected
CiscoCisco Firepower Threat Defense Software7.1.0.3affected
CiscoCisco Firepower Threat Defense Software7.2.4affected
CiscoCisco Firepower Threat Defense Software7.0.6affected
CiscoCisco Firepower Threat Defense Software7.2.5affected
CiscoCisco Firepower Threat Defense Software7.2.4.1affected
CiscoCisco Firepower Threat Defense Software7.3.1.1affected
CiscoCisco Firepower Threat Defense Software6.4.0.17affected
CiscoCisco Firepower Threat Defense Software7.0.6.1affected
CiscoCisco Firepower Threat Defense Software7.2.5.1affected
CiscoCisco Firepower Threat Defense Software6.6.7.2affected
CiscoCisco Firepower Threat Defense Software7.2.5.2affected
CiscoCisco Firepower Threat Defense Software7.3.1.2affected

Weaknesses

  • CWE-476: NULL Pointer Dereference

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References