CVE-2021-34792

CVSS V2 High 7.8 CVSS V3 High 7.5
Description
A vulnerability in the memory management of Cisco Adaptive Security Appliance (ASA) Software and 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 improper resource management when connection rates are high. An attacker could exploit this vulnerability by opening a significant number of connections on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Overview
  • CVE ID
  • CVE-2021-34792
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-10-27T19:15:08
  • Last Modified Date
  • 2022-10-24T14:19:47
Weakness Enumerations
CWE URL
CWE-401 http://cwe.mitre.org/data/definitions/401.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.8.0 9.8.4.40
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.12.0 9.12.4.29
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.14.0 9.14.3.9
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.15.0 9.15.1.17
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.16.0 9.16.2.3
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 1 OR 6.4.0 6.4.0.13
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 1 OR 6.6.0 6.6.5
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 1 OR 6.7.0 6.7.0.3
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 1 OR 7.0.0 7.0.1
AND
cpe:2.3:o:cisco:asa_5512-x_firmware:009.014\(001.150\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5512-x_firmware:099.017\(001.211\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5512-x_firmware:099.017\(001.220\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5512-x_firmware:099.017\(015.050\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5505_firmware:009.014\(001.150\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5505_firmware:099.017\(001.211\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5505_firmware:099.017\(001.220\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5505_firmware:099.017\(015.050\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5515-x_firmware:009.014\(001.150\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5515-x_firmware:099.017\(001.211\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5515-x_firmware:099.017\(001.220\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5515-x_firmware:099.017\(015.050\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5525-x_firmware:009.014\(001.150\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5525-x_firmware:099.017\(001.211\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5525-x_firmware:099.017\(001.220\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5525-x_firmware:099.017\(015.050\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5545-x_firmware:009.014\(001.150\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5545-x_firmware:099.017\(001.211\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5545-x_firmware:099.017\(001.220\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5545-x_firmware:099.017\(015.050\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5555-x_firmware:009.014\(001.150\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5555-x_firmware:099.017\(001.211\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5555-x_firmware:099.017\(001.220\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5555-x_firmware:099.017\(015.050\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5580_firmware:009.014\(001.150\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5580_firmware:099.017\(001.211\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5580_firmware:099.017\(001.220\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5580_firmware:099.017\(015.050\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5585-x_firmware:009.014\(001.150\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5585-x_firmware:099.017\(001.211\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5585-x_firmware:099.017\(001.220\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5585-x_firmware:099.017\(015.050\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.8
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dos-Unk689XY Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-34792
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34792
History
Created Old Value New Value Data Type Notes
2022-05-10 06:49:10 Added to TrackCVE
2022-12-05 13:21:59 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-05 13:21:59 2021-10-27T19:15Z 2021-10-27T19:15:08 CVE Published Date updated
2022-12-05 13:21:59 2022-10-24T14:19:47 CVE Modified Date updated
2022-12-05 13:21:59 Analyzed Vulnerability Status updated