CVE-2018-8828
9.8
CRITICAL · CVSS 3.0 · EPSS 30.4% (pctl 98)
Patch early
EPSS 30.4% — above the 10% action threshold.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 30.41% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-193 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-03-20 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| kamailio | kamailio |
References
- https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflow
- https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097
- https://usn.ubuntu.com/4240-1/
- https://www.debian.org/security/2018/dsa-4148
- https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflow
- https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097
- https://usn.ubuntu.com/4240-1/
- https://www.debian.org/security/2018/dsa-4148
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