CVE-2020-27507

State: Published
Severity: 9.8 Critical
Published: Mar 15, 2023
Updated: Feb 27, 2025
Reserved: Oct 21, 2020

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/kamailio/kamailio/issues/2503
https://github.com/kamailio/kamailio/commit/ada3701d22b1fd579f06b4f54fa695fa988e685f
[debian-lts-announce] 20230530 [SECURITY] [DLA 3438-1] kamailio security updatemailing-list

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