CVE-2023-20042
Summary
| CVE | CVE-2023-20042 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-11-01 18:15:00 UTC |
| Updated | 2024-01-25 17:15:00 UTC |
| Description | A vulnerability in the AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and 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 an implementation error within the SSL/TLS session handling process that can prevent the release of a session handler under specific conditions. An attacker could exploit this vulnerability by sending crafted SSL/TLS traffic to an affected device, increasing the probability of session handler leaks. A successful exploit could allow the attacker to eventually deplete the available session handler pool, preventing new sessions from being established and causing a DoS condition. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.1 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.1.28 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.2 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.2.11 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.2.13 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.2.14 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.2.3 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.2.7 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.3 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.3.14 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.3.15 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.3.19 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.3.23 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.3.3 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.4 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.16.4.9 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.17.1 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.17.1.10 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.17.1.11 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.17.1.13 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.17.1.15 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.17.1.20 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.17.1.7 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.17.1.9 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.18.1 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.18.1.3 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.18.2 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.18.2.5 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.18.2.7 | All | All | All |
| Operating System | Cisco | Adaptive Security Appliance Software | 9.19.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.0 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.0.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.1.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.2 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.2.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.3 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.4 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.0.5 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.1.0 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.1.0.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.1.0.2 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.1.0.3 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.2.0 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.2.0.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.2.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.2.2 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.2.3 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.3.0 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.3.1 | All | All | All |
| Application | Cisco | Firepower Threat Defense | 7.3.1.1 | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect SSL/TLS VPN Denial of Service Vulnerability | MISC | sec.cloudapps.cisco.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 317404 Cisco Adaptive Security Appliance (ASA) Denial of Service (DoS) Vulnerability (cisco-sa-asaftd-ssl-dos-kxG8mpUA)