CVE-2018-8828

Name: CVE-2018-8828
Creator: NVD / NIST
Published: 2018-03-20T20:29:00.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 31.34%

Last modified Jun 17, 2026

CVE-2018-8828 is a vulnerability of currently unknown severity. A Buffer Overflow issue was discovered in Kamailio before 4.4.7, 5.0.x before 5.0.6, and 5.1.x before 5.1.2. A specially crafted REGISTER message with a malformed branch or From tag triggers an off-by-one heap-based buffer overflow in the tmx_check_pretran function in modules/tmx/tmx_pretran.c.. EPSS estimates a 31.34% chance of exploitation in the next 30 days.

Description

A Buffer Overflow issue was discovered in Kamailio before 4.4.7, 5.0.x before 5.0.6, and 5.1.x before 5.1.2. A specially crafted REGISTER message with a malformed branch or From tag triggers an off-by-one heap-based buffer overflow in the tmx_check_pretran function in modules/tmx/tmx_pretran.c.

Metrics

EPSS Probability

31.34%

98.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Kamailio	Kamailio	< 4.4.7
Kamailio	Kamailio	>= 5.0.0, < 5.0.6
Kamailio	Kamailio	>= 5.1.0, < 5.1.2
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflowThird Party Advisory
https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097Patch, Third Party Advisory
https://usn.ubuntu.com/4240-1/
https://www.debian.org/security/2018/dsa-4148Third Party Advisory
https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflowThird Party Advisory
https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097Patch, Third Party Advisory
https://usn.ubuntu.com/4240-1/
https://www.debian.org/security/2018/dsa-4148Third Party Advisory

Timeline

Published: Mar 20, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8828?

How severe is CVE-2018-8828?

Severity scoring for CVE-2018-8828 is pending analysis. The EPSS model estimates a 31.34% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8828?

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-2018-8828?

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

Scan your code now

Source: NVD / NIST