Use After Free Affecting pjproject package, versions *


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
4.06% (90th percentile)

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  • Snyk IDSNYK-UBUNTU1804-PJPROJECT-2412609
  • published21 Mar 2026
  • disclosed22 Feb 2022

Introduced: 22 Feb 2022

CVE-2022-23608  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:18.04 pjproject.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pjproject package and not the pjproject package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

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 Base Scores

version 3.1