CVE-2018-14767 Information

Description

In Kamailio before 5.0.7 and 5.1.x before 5.1.4 a crafted SIP message with a double \To\ header and an empty \To\ tag causes a segmentation fault and crash. The reason is missing input validation in the \build_res_buf_from_sip_req\ core function. This could result in denial of service and potentially the execution of arbitrary code.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://lists.debian.org/debian-lts-announce/2018/08/msg00018.html https://skalatan.de/blog/advisory-hw-2018-05 https://www.debian.org/security/2018/dsa-4267

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8