Vulnerability identifier: #VU63100

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24786

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
pjsip
Universal components / Libraries / Libraries used by multiple products

Vendor: pjsip

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when parsing RTCP feedback RPSI (Reference Picture Selection Indication) packet. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

pjsip: 2.0 - 2.12

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External links
http://github.com/pjsip/pjproject/security/advisories/GHSA-vhxv-phmx-g52q
http://github.com/pjsip/pjproject/commit/11559e49e65bdf00922ad5ae28913ec6a198d508

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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.