CVE-2020-3572
published 2020-10-21CVE-2020-3572: A vulnerability in the SSL/TLS session handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could…
PriorityP348high8.6CVSS 3.1
AVNACLPRNUINSCCNINAH
EPSS
1.76%
75.7th percentile
A vulnerability in the SSL/TLS session handler 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. The vulnerability is due to a memory leak when closing SSL/TLS connections in a specific state. An attacker could exploit this vulnerability by establishing several SSL/TLS sessions and ensuring they are closed under certain conditions. A successful exploit could allow the attacker to exhaust memory resources in the affected device, which would prevent it from processing new SSL/TLS connections, resulting in a DoS. Manual intervention is required to recover an affected device.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | adaptive_security_appliance | < 9.6 | 9.6 |
| cisco | adaptive_security_appliance | — | — |
| cisco | adaptive_security_appliance_software | >= 9.10.0 < 9.10.1.44 | 9.10.1.44 |
| cisco | adaptive_security_appliance_software | >= 9.12.0 < 9.12.4.4 | 9.12.4.4 |
| cisco | adaptive_security_appliance_software | >= 9.13.0 < 9.13.1.13 | 9.13.1.13 |
| cisco | adaptive_security_appliance_software | >= 9.14.0 < 9.14.1.19 | 9.14.1.19 |
| cisco | adaptive_security_appliance_software | >= 9.8.0 < 9.8.4.26 | 9.8.4.26 |
| cisco | adaptive_security_appliance_software | >= 9.9.0 < 9.9.2.80 | 9.9.2.80 |
| cisco | cisco_adaptive_security_appliance_software | — | — |
| cisco | firepower_threat_defense | < 6.3.0.6 | 6.3.0.6 |
| cisco | firepower_threat_defense | >= 6.4.0 < 6.4.0.10 | 6.4.0.10 |
| cisco | firepower_threat_defense | >= 6.5.0 < 6.6.1 | 6.6.1 |
CVSS provenance
nvdv3.18.6HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
vendor_cisco8.6HIGH
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Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Session Denial of Service Vulnerability
vendor_cisco·2020-10-21·CVSS 8.6
CVE-2020-3572 [HIGH] CWE-400 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Session Denial of Service Vulnerability
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Session Denial of Service Vulnerability
Update from October 22nd, 2020: Cisco has become aware of a new Cisco Adaptive Security Appliance vulnerability that could affect the fixed releases recommended for code trains 9.13 and 9.14 in the Fixed Software section of this advisory. See the Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability for additional information.
A vulnerability in the SSL/TLS session handler 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.
The vulnerability is due to a memory leak whe
Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Session Denial of Service Vulnerability
vendor_cisco·CVSS 3.1
CVE-2020-3572 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Session Denial of Service Vulnerability
CVE-2020-3572: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Session Denial of Service Vulnerability
Update from October 22nd, 2020 : Cisco has become aware of a new Cisco Adaptive Security Appliance vulnerability that could affect the fixed releases recommended for code trains 9.13 and 9.14 in the Fixed Software section of this advisory. See the Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability for additional information. A vulnerability in the SSL/TLS session handler 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. The vulnerability is due to a me
GHSA
GHSA-jq5v-m468-x8ph: A vulnerability in the SSL/TLS session handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software c
ghsa_unreviewed·2022-05-24
CVE-2020-3572 [HIGH] CWE-400 GHSA-jq5v-m468-x8ph: A vulnerability in the SSL/TLS session handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software c
A vulnerability in the SSL/TLS session handler 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. The vulnerability is due to a memory leak when closing SSL/TLS connections in a specific state. An attacker could exploit this vulnerability by establishing several SSL/TLS sessions and ensuring they are closed under certain conditions. A successful exploit could allow the attacker to exhaust memory resources in the affected device, which would prevent it from processing new SSL/TLS connections, resulting in a DoS. Manual intervention is required to recover an affected device.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-10-21
Published