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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

3 years ago

Modified

Modified

3 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.

Common Vulnerabilities and Exposures (CVE)