# CVE-2022-23608: ring: PJSIP is a free and open source multimedia communication library written in C language implementing standard based pr...

CVE-2022-23608 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2022-23608, released February 22, 2022. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2022-23608
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0402
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 22, 2022

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | asterisk Debian 14 | 1:18.10.1~dfsg+~cs6.10.40431411-1 | [DEBIAN-CVE-2022-23608](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23608.md) | Feb 22, 2022 |
| Linux | jami Ubuntu 20.04 LTS (focal) | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | [jami 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-jami-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1.md) | Mar 14, 2023 |
| Linux | jami-daemon Ubuntu 20.04 LTS (focal) | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | [jami-daemon 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-jami-daemon-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1.md) | Mar 14, 2023 |
| Linux | ring Debian 12.15 (bookworm) | 20230206.0~ds1-1 | [DEBIAN-CVE-2022-23608](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23608.md) | Feb 22, 2022 |
| Linux | ring Ubuntu 18.04.6 LTS (bionic) | 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | [ring 20180228.1.503da2b~ds1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ring-20180228.1.503da2b-ds1-1ubuntu0.1-esm1.md) | Mar 14, 2023 |
| Linux | ring Ubuntu 20.04 LTS (focal) | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | [ring 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ring-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1.md) | Mar 14, 2023 |
| Linux | ring-daemon Ubuntu 18.04.6 LTS (bionic) | 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | [ring-daemon 20180228.1.503da2b~ds1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ring-daemon-20180228.1.503da2b-ds1-1ubuntu0.1-esm1.md) | Mar 14, 2023 |
| Linux | ring-daemon Ubuntu 20.04 LTS (focal) | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | [ring-daemon 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ring-daemon-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1.md) | Mar 14, 2023 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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