| Package | Affected versions | Patched versions |
|---|---|---|
| certified asterisk | = 16.8.0< 16.8.0 | 16.8.0 |
| asterisk | ≥ 16.0.0, < 16.24.1≥ 18.0.0, < 18.10.1≥ 19.0.0, < 19.2.1 | 16.24.118.10.119.2.1 |
| pjsip | ≤ 2.11.1 |
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.
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