---
cve: "CVE-2022-21722"
severity: "CRITICAL"
cvss: 9.1
epss: "2.4%"
vendor: "pjsip"
kev: false
exploited: false
published: "2022-01-27 00:15:07"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T06:49:39+02:00"
---

# CVE-2022-21722

> 9.1 CRITICAL · 🧪 PoC

## Beschreibung

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 version 2.11.1 and prior, there are various cases where it is possible that certain incoming RTP/RTCP packets can potentially cause out-of-bound read access. This issue affects all users that use PJMEDIA and accept incoming RTP/RTCP. A patch is available as a commit in the `master` branch. There are no known workarounds.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 22af44e68a0c7d190ac1e25075e1382f77e9397a (Commit)

## Referenzen

- <https://github.com/pjsip/pjproject/security/advisories/GHSA-m66q-q64c-hv36>
- <https://github.com/pjsip/pjproject/commit/22af44e68a0c7d190ac1e25075e1382f77e9397a>
- <https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html>
- <https://security.gentoo.org/glsa/202210-37>
- <https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html>
- <https://www.debian.org/security/2022/dsa-5285>
- <https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html>
- <https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-21722) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_