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CVE-2020-27507

Published: 15 March 2023

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.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
kamailio
Launchpad, Ubuntu, Debian
bionic
Released (5.1.2-1ubuntu2+esm1)
Available with Ubuntu Pro
focal
Released (5.3.2-1ubuntu0.1~esm1)
Available with Ubuntu Pro
jammy Not vulnerable
(5.5.4-1)
kinetic Not vulnerable
(5.5.4-1)
lunar Ignored
(end of life, was needs-triage)
mantic Ignored
(end of life, was needs-triage)
noble Needs triage

trusty Does not exist

upstream Needs triage

xenial
Released (4.3.4-1.1ubuntu2.1+esm1)
Available with Ubuntu Pro

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H