SB2020050714 - Denial of service in Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software
Published: May 7, 2020
Security Bulletin ID
SB2020050714
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2020-3191)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper length validation of a field in an IPv6 DNS packet. A remote attacker can send a specially crafted DNS query over IPv6 and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.