#VU73153 Out-of-bounds write in Sofia-SIP - CVE-2023-22741

Vulnerability identifier: #VU73153

Vulnerability risk: High

CVSSv4.0: 8.1 [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-2023-22741

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Sofia-SIP
Universal components / Libraries / Libraries used by multiple products

Vendor: www.freeswitch.org

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing STUN packets. A remote attacker can send specially crafted STUN packets to the server, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Sofia-SIP: 1.13.2 - 1.13.10

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External links
https://github.com/freeswitch/sofia-sip/commit/da53e4fbcb138b080a75576dd49c1fff2ada2764
https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-8599-x7rq-fr54

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.