Buffer overflow in Kamailio - CVE-2020-27507

 

Buffer overflow in Kamailio - CVE-2020-27507

Published: April 18, 2023


Vulnerability identifier: #VU75216
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-27507
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Kamailio
Affected software:
Kamailio

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing INVITE requests. A remote attacker can send  specially crafted INVITE requests to the SIP server, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2020-27507

Install updates from vendor's website.

Sources