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Vulnerability DatabaseCVE-2020-3555
CVE-2020-3555:
Cisco Adaptive Security Appliance (ASA) vulnerability analysis and mitigation
Overview
A vulnerability (CVE-2020-3555) was discovered in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software. The vulnerability is related to a watchdog timeout and crash during the cleanup of threads associated with SIP connections that are being terminated (Cisco Advisory).
Technical details
The vulnerability has been assigned a CVSS base score of 6.8, with the following vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X. It is classified under CWE-404 and involves issues with thread cleanup during SIP connection termination (Cisco Advisory, NVD).
Impact
The vulnerability can result in a denial of service (DoS) condition when exploited, potentially causing system crashes and service interruptions in affected Cisco ASA and FTD devices (Cisco Advisory).
Mitigation and workarounds
Cisco has released software updates that address this vulnerability. Organizations running affected versions of Cisco ASA or FTD Software should upgrade to a fixed version as recommended in the security advisory (Cisco Advisory).
Additional resources
Source: This report was generated using AI
Related Cisco Adaptive Security Appliance (ASA) vulnerabilities:
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