CVE-2018-16657

CRITICAL

Kamailio <5.0.7, 5.1.x <5.1.4 - DoS/Code Injection

Title source: llm
STIX 2.1

Description

In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with an invalid Via header causes a segmentation fault and crashes Kamailio. The reason is missing input validation in the crcitt_string_array core function for calculating a CRC hash for To tags. (An additional error is present in the check_via_address core function: this function also misses input validation.) This could result in denial of service and potentially the execution of arbitrary code.

References (3)

Core 3
Core References
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4292
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html
Exploit, Patch, Third Party Advisory x_refsource_misc
https://skalatan.de/blog/advisory-hw-2018-06

Scores

CVSS v3 9.8
EPSS 0.0358
EPSS Percentile 88.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-476
Status published
Products (3)
debian/debian_linux 8.0
debian/debian_linux 9.0
kamailio/kamailio < 5.0.7
Published Sep 07, 2018
Tracked Since Feb 18, 2026