CVE-2022-42705 Information

Description

A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28 18.14 19.6 and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.

Reference

https://downloads.asterisk.org/pub/security/AST-2022-008.html