Detections
Analytics
CVE-2026-57201
high
Description
Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, a stack buffer overflow in the H.323 `ooTrace()` trace-logging function can occur when unbounded `vsprintf` writes into a fixed `2048-byte buffer`. A remote attacker may send a carefully crafted packet that causes the Asterisk process to crash. The `chan_ooh323` addon channel driver must be explicitly compiled and installed, which is not the default, and its port must be publicly reachable. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.
References
https://github.com/asterisk/asterisk/tree/24.0.0-pre1
https://github.com/asterisk/asterisk/security/advisories/GHSA-x348-j6c9-77f3
https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3
https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11
https://github.com/asterisk/asterisk/releases/tag/23.4.1
https://github.com/asterisk/asterisk/releases/tag/22.10.1
https://github.com/asterisk/asterisk/releases/tag/21.12.3
https://github.com/asterisk/asterisk/releases/tag/20.20.1
https://github.com/asterisk/asterisk/commit/fff256d0539e96f70ac315844d72e9d540f03a4c
https://github.com/asterisk/asterisk/commit/c4d9b4defe83f74523880fd630c02c49683786a3
https://github.com/asterisk/asterisk/commit/bf0c9a906892bc0f91fa753476e326919e4e30e5
https://github.com/asterisk/asterisk/commit/ac0a64dec6d4231bf005a68da6af3e02bb311634
https://github.com/asterisk/asterisk/commit/875ac7413de0b7068cd12d0da2f140cd06ba9357
https://github.com/asterisk/asterisk/commit/33f62e351642edd9c58ef97b0002132722546af9
https://github.com/asterisk/asterisk/commit/2d7b8c8dc13d9ead8b6f36cc38b6dd91cd4abd3a