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Asterisk DoS Vulnerability (AST-2019-008)
Information
Severity
Severity
Medium
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
6.8
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:S/C:N/I:N/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
4 years ago
Modified
Modified
4 years ago
Summary
Asterisk is prone to a denial of service vulnerability.
Insight
Insight
If Asterisk receives a re-invite initiating T.38 faxing and has a port of 0 and no c line in the SDP, a crash will occur.
Affected Software
Affected Software
Asterisk Open Source 13.x and 13.21 Certified Asterisk.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to Version 13.29.2, 13.21-cert5 or later.