CVE-2020-27507

The Kamailio SIP before 5.5.0 server mishandles INVITE requests with d ...

Published 15 Mar 2023Modified 17 Jun 2026CWE 120

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

Description

The Kamailio SIP before 5.5.0 server mishandles INVITE requests with duplicated fields and overlength tag, leading to a buffer overflow that crashes the server or possibly have unspecified other impact.

Affected packages and fixed versions

Source	Package	Fixed in
debian 10	kamailio	5.2.1-1+deb10u1
debian 11	kamailio	5.4.2-1
debian 12	kamailio	5.4.2-1
debian 13	kamailio	5.4.2-1
debian 14	kamailio	5.4.2-1
echo	kamailio	5.4.2-1
ubuntu 16.04-ESM	kamailio	4.3.4-1.1ubuntu2.1+esm1
ubuntu 18.04-ESM	kamailio	5.1.2-1ubuntu2+esm1
ubuntu 20.04-ESM	kamailio	5.3.2-1ubuntu0.1~esm1

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.