#VU54899 Reachable Assertion in Cisco Adaptive Security Appliance (ASA) - CVE-2021-1422 

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Main Vulnerability Database Vulnerabilities #VU54899

#VU54899 Reachable Assertion in Cisco Adaptive Security Appliance (ASA) - CVE-2021-1422

Published: July 15, 2021


Vulnerability identifier: #VU54899
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-1422
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a logic error in how the software cryptography module handles specific types of decryption errors. A remote user can send malicious packets over an established IPsec connection and perform a denial of service attack.


Remediation

Install updates from vendor's website.

External links