PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victim’s network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victim’s machine. Users are advised to upgrade as soon as possible. There are no known workarounds.
CVSS Details
- CVSS 3.1 Base Score: 7.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade pjproject | Aug 22, 2024 | Dec 22, 2021 |
| Debian | — | Upgrade ringUpgrade asterisk | Mar 29, 2022 | Dec 22, 2021 |
| Freebsd | — | Upgrade asterisk16Upgrade asterisk18 | Nov 4, 2022 | Mar 5, 2022 |
| Gentoo Linux | — | Upgrade net-libs/pjproject. | Nov 1, 2022 | Dec 22, 2021 |
| Ubuntu | — | Upgrade libpj2 (Ubuntu Pro)Upgrade libpjsua2 (Ubuntu Pro)Upgrade libpjsip2 (Ubuntu Pro)Upgrade jami-daemonUpgrade ring-daemonUpgrade libpjnath2 (Ubuntu Pro)Upgrade ring (Ubuntu Pro)Upgrade ring-daemon (Ubuntu Pro)Upgrade libpjmedia2 (Ubuntu Pro)Upgrade python-pjproject (Ubuntu Pro)Upgrade ringUpgrade jami | Oct 10, 2023 | Dec 22, 2021 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub