Description
A weakness has been identified in Kamailio up to 5.8.8/6.0.7/6.1.4/6.2.0-dev1. The impacted element is the function shm_malloc of the file src/modules/cdp/receiver.c of the component CDP Diameter Receiver. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 6.0.8 is sufficient to resolve this issue. This patch is called 38711a3e788de0130d48cb485578c482b57d9351/4f62235b6f477b649c5cc18b0c81b4e26c949b98/4f62235b6f477b649c5cc18b0c81b4e26c949b98. You should upgrade the affected component.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Kamailio | 5.8.0, 5.8.1, 5.8.2, 5.8.3, 5.8.4, 5.8.5, 5.8.6, 5.8.7, 5.8.8, 6.0.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, 6.0.6, 6.0.7, 6.1.0, 6.1.1, 6.1.2, 6.1.3, 6.1.4, 6.2.0-dev1 | 6.0.8 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | kamailio | 6.1.5-1 | — |
| Debian 13 | kamailio | No fix yet | — |
| Debian 12 | kamailio | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | kamailio | No fix yet | — |
| Ubuntu 26.04 LTS | kamailio | No fix yet | — |
| Ubuntu 24.04 LTS | kamailio | No fix yet | — |
| Ubuntu 22.04 LTS | kamailio | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | kamailio | No fix yet | — |
| Ubuntu Pro 18.04 LTS | kamailio | No fix yet | — |
| Ubuntu Pro 16.04 LTS | kamailio | No fix yet | — |
References
- VDB-407921 | Kamailio CDP Diameter Receiver receiver.c shm_malloc heap-based overflow vdb-entry technical-description
- VDB-407921 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-93962 | CVE Analysis and Report third-party-advisory
- Submit #944244 | Kamailio Kamailio SIP Server 6.1.4 Heap-based Buffer Overflow third-party-advisory
- https://github.com/kamailio/kamailio/issues/4876 exploit issue-tracking
- https://github.com/kamailio/kamailio/pull/4877 issue-tracking patch
- https://github.com/kamailio/kamailio/commit/38711a3e788de0130d48cb485578c482b57d9351 patch
- https://github.com/kamailio/kamailio/releases/tag/6.0.8 patch
- https://github.com/kamailio/kamailio/ product