CVE-2018-8828: Debian Linux

Critical severity, CVSS 9.8. EPSS: 30.4% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Kamailio Kamailio: before 4.4.7 (fixed in 4.4.7); from 5.0.0, before 5.0.6 (fixed in 5.0.6); from 5.1.0, before 5.1.2 (fixed in 5.1.2)

Published 2018-03-20. Last modified 2026-06-17.