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Asterisk Multiple DoS Vulnerabilities (AST-2020-003, AST-2020-004)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Asterisk is prone to multiple denial of service vulnerabilities.
Insight
Insight
Multiple flaws exist in the res_pjsip_diversion module: - A crash can occur when a SIP message is received that has a History-Info header, which contains a tel-uri. - A crash can occur when a SIP 181 response is received that has a Diversion header, which contains a tel-uri.
Affected Software
Affected Software
Asterisk Open Source 13.38.0, 16.15.0, 17.9.0 and 18.1.0.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to Version 13.38.1, 16.15.1, 17.9.1, 18.1.1 or later.