{"cve":"CVE-2022-23608","nvd":{"published":"2022-02-22T20:15:07.693","modified":"2026-06-17T04:30:28.263","status":"Modified","description":"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 versions up to and including 2.11.1 when in a dialog set (or forking) scenario, a hash key shared by multiple UAC dialogs can potentially be prematurely freed when one of the dialogs is destroyed . The issue may cause a dialog set to be registered in the hash table multiple times (with different hash keys) leading to undefined behavior such as dialog list collision which eventually leading to endless loop. A patch is available in commit db3235953baa56d2fb0e276ca510fefca751643f which will be included in the next release. There are no known workarounds for this issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-416"],"references":["http://packetstormsecurity.com/files/166226/Asterisk-Project-Security-Advisory-AST-2022-005.html","http://seclists.org/fulldisclosure/2022/Mar/1","https://github.com/pjsip/pjproject/commit/db3235953baa56d2fb0e276ca510fefca751643f","https://github.com/pjsip/pjproject/security/advisories/GHSA-ffff-m5fm-qm62","https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html"],"products":["asterisk:certified_asterisk","debian:debian_linux","sangoma:asterisk","teluu:pjsip"],"source":"nvd","synced_at":"2026-10-19T21:28:04.509275555+00:00"},"epss":{"cve":"CVE-2022-23608","score":0.04022,"percentile":0.90583,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}