Description
Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and 16.x before 16.0.1 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.
References (2)
Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://downloads.asterisk.org/pub/security/AST-2018-010.html
Exploit, Vendor Advisory x_refsource_misc
https://issues.asterisk.org/jira/browse/ASTERISK-28127
Scores
CVSS v3
7.5
EPSS
0.0358
EPSS Percentile
87.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-119
Status
published
Products (17)
digium/asterisk
15.0.0 (3 CPE variants)
digium/asterisk
15.1.0 (3 CPE variants)
digium/asterisk
15.1.2
digium/asterisk
15.1.3
digium/asterisk
15.1.4
digium/asterisk
15.1.5
digium/asterisk
15.2.0 rc1 (2 CPE variants)
digium/asterisk
15.2.1
digium/asterisk
15.2.2
digium/asterisk
15.3.0 (3 CPE variants)
... and 7 more
Published
Nov 14, 2018
Tracked Since
Feb 18, 2026