CVE-2018-14767

Name: CVE-2018-14767
Creator: NVD / NIST
Published: 2018-07-31T06:29:00.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 29.30%

Last modified Jun 17, 2026

CVE-2018-14767 is a vulnerability of currently unknown severity. 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. EPSS estimates a 29.30% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

29.30%

97.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Kamailio	Kamailio	< 5.0.7
Kamailio	Kamailio	>= 5.1.0, < 5.1.4

References

https://lists.debian.org/debian-lts-announce/2018/08/msg00018.htmlMailing List, Third Party Advisory
https://skalatan.de/blog/advisory-hw-2018-05Exploit, Patch, Third Party Advisory
https://www.debian.org/security/2018/dsa-4267Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00018.htmlMailing List, Third Party Advisory
https://skalatan.de/blog/advisory-hw-2018-05Exploit, Patch, Third Party Advisory
https://www.debian.org/security/2018/dsa-4267Third Party Advisory

Timeline

Published: Jul 31, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-14767?

How severe is CVE-2018-14767?

Severity scoring for CVE-2018-14767 is pending analysis. The EPSS model estimates a 29.30% probability of exploitation in the next 30 days.

How do I fix CVE-2018-14767?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-14767?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST