CVE-2020-3555
A vulnerability in the SIP inspection process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a crash and reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a watchdog timeout and crash during the cleanup of threads that are associated with a SIP connection that is being deleted from the connection list. An attacker could exploit this vulnerability by sending a high rate of crafted SIP traffic through an affected device. A successful exploit could allow the attacker to cause a watchdog timeout and crash, resulting in a crash and reload of the affected device.
- Score
- CVSS 3.1 7.5 High
- Status
- Modified - psirt@cisco.com
- Published
- 2020-10-21
- Last modified
- 2024-11-13
- Weaknesses
- CWE-404
Affected products
- Adaptive Security Appliance (Cisco)
- Adaptive Security Appliance Software (Cisco)
- Cisco Adaptive Security Appliance Asa Software (Cisco)
- Secure Firewall Threat Defense (Cisco)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-sipdos-3DGvdjvg
