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Asterisk DoS Vulnerability (AST-2018-010)

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

4 years ago

Summary

Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk allows remote attackers to crash Asterisk via a specially crafted DNS SRV or NAPTR response, because a buffer size is supposed to match an expanded length but actually matches a compressed length.

Affected Software

Affected Software

Asterisk Open Source 15.x and 16.x.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Upgrade to Version 15.6.2, 16.0.1 or later.

Common Vulnerabilities and Exposures (CVE)