CVE-2022-20946

A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

 This vulnerability is due to a memory handling error that occurs when GRE traffic is processed. An attacker could exploit this vulnerability by sending a crafted GRE payload through an affected device. A successful exploit could allow the attacker to cause the device to restart, resulting in a DoS condition.

    

  https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM"]

 
 This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
ciscoCNA
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 56.93%
Affected Products (NVD)
VendorProductVersion
ciscosecure_firewall_threat_defense
6.3.0 ≤
𝑥
≤ 6.3.0.5
ciscosecure_firewall_threat_defense
6.4.0 ≤
𝑥
≤ 6.4.0.15
ciscosecure_firewall_threat_defense
6.5.0 ≤
𝑥
≤ 6.5.0.5
ciscosecure_firewall_threat_defense
6.6.0 ≤
𝑥
≤ 6.6.5.2
ciscosecure_firewall_threat_defense
6.7.0 ≤
𝑥
≤ 6.7.0.3
ciscosecure_firewall_threat_defense
7.0.0 ≤
𝑥
≤ 7.0.3
ciscosecure_firewall_threat_defense
7.1.0.0
ciscosecure_firewall_threat_defense
7.1.0.1
ciscosecure_firewall_threat_defense
7.1.0.2
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
ciscofirepower_threat_defense
6.6.0
CNA
ciscofirepower_threat_defense
6.6.0.1
CNA
ciscofirepower_threat_defense
6.6.1
CNA
ciscofirepower_threat_defense
6.6.3
CNA
ciscofirepower_threat_defense
6.6.4
CNA
ciscofirepower_threat_defense
6.6.5
CNA
ciscofirepower_threat_defense
6.6.5.1
CNA
ciscofirepower_threat_defense
6.6.5.2
CNA
ciscofirepower_threat_defense
6.4.0
CNA
ciscofirepower_threat_defense
6.4.0.1
CNA
ciscofirepower_threat_defense
6.4.0.3
CNA
ciscofirepower_threat_defense
6.4.0.2
CNA
ciscofirepower_threat_defense
6.4.0.4
CNA
ciscofirepower_threat_defense
6.4.0.5
CNA
ciscofirepower_threat_defense
6.4.0.6
CNA
ciscofirepower_threat_defense
6.4.0.7
CNA
ciscofirepower_threat_defense
6.4.0.8
CNA
ciscofirepower_threat_defense
6.4.0.9
CNA
ciscofirepower_threat_defense
6.4.0.10
CNA
ciscofirepower_threat_defense
6.4.0.11
CNA
ciscofirepower_threat_defense
6.4.0.12
CNA
ciscofirepower_threat_defense
6.4.0.13
CNA
ciscofirepower_threat_defense
6.4.0.14
CNA
ciscofirepower_threat_defense
6.4.0.15
CNA
ciscofirepower_threat_defense
6.7.0
CNA
ciscofirepower_threat_defense
6.7.0.1
CNA
ciscofirepower_threat_defense
6.7.0.2
CNA
ciscofirepower_threat_defense
6.7.0.3
CNA
ciscofirepower_threat_defense
7.0.0
CNA
ciscofirepower_threat_defense
7.0.0.1
CNA
ciscofirepower_threat_defense
7.0.1
CNA
ciscofirepower_threat_defense
7.0.1.1
CNA
ciscofirepower_threat_defense
7.0.2
CNA
ciscofirepower_threat_defense
7.0.2.1
CNA
ciscofirepower_threat_defense
7.0.3
CNA
ciscofirepower_threat_defense
7.1.0
CNA
ciscofirepower_threat_defense
7.1.0.1
CNA
ciscofirepower_threat_defense
7.1.0.2
CNA
Common Weakness Enumeration
References
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM