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 PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
| Link | Tags |
|---|---|
| https://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr | third party advisory |
| https://github.com/pjsip/pjproject/pull/2716 | third party advisory patch |
| https://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd | third party advisory patch |
| https://github.com/pjsip/pjproject/releases/tag/2.11.1 | third party advisory release notes |
| https://www.debian.org/security/2021/dsa-4999 | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html | third party advisory mailing list |
| https://security.gentoo.org/glsa/202210-37 | third party advisory vendor advisory |