CVE-2018-8828

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.96% Top 15%
Vendor Advisory debian.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097 third party advisory patch
https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflow third party advisory
https://www.debian.org/security/2018/dsa-4148 third party advisory vendor advisory
https://usn.ubuntu.com/4240-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-8828?
CVE-2018-8828 has been scored as a critical severity vulnerability.
How to fix CVE-2018-8828?
To fix CVE-2018-8828, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-8828 being actively exploited in the wild?
It is possible that CVE-2018-8828 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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