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CVE-2021-32686

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 202210-37
Posted Nov 1, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202210-37 - Multiple vulnerabilities have been found in PJSIP, the worst of which could result in arbitrary code execution. Versions less than 2.12.1 are affected.

tags | advisory, arbitrary, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2021-32686, CVE-2021-37706, CVE-2021-41141, CVE-2021-43804, CVE-2021-43845, CVE-2022-21722, CVE-2022-21723, CVE-2022-23608, CVE-2022-24754, CVE-2022-24763, CVE-2022-24764, CVE-2022-24786, CVE-2022-24792, CVE-2022-24793
SHA-256 | 0283ae0c45529cc645d6e34ea884fdbdff80a46da788bbb3271840ecfe2a7e46
Debian Security Advisory 4999-1
Posted Nov 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4999-1 - Multiple vulnerabilities have been discovered in Asterisk, an open source PBX and telephony toolkit, which may result in denial of service.

tags | advisory, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2021-32558, CVE-2021-32686
SHA-256 | 32e0f410aa33b5e48c93e8bfabe77026431d522a47de00eb87184616a5207ff1
Asterisk Project Security Advisory - AST-2021-009
Posted Jul 22, 2021
Authored by Kevin Harwell, Andrew Yager | Site asterisk.org

Depending on the timing, it is possible for Asterisk to crash when using a TLS connection if the underlying socket parent/listener gets destroyed during the handshake.

tags | advisory
advisories | CVE-2021-32686
SHA-256 | f908e37fa6bf92ff245d1f52190b304b3ef6738cc22397a7a0ad4665b63b3f39
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