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, insufficient bounds checking in the `chan_ooh323` `Q.931` `information-element parser` permits an `out-of-bounds read` that may allow an unauthenticated attacker to crash Asterisk using carefully crafted `setup packets`. 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.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
First Time appeared Asterisk
Asterisk asterisk
Asterisk certified Asterisk
Vendors & Products Asterisk
Asterisk asterisk
Asterisk certified Asterisk

Mon, 26 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
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, insufficient bounds checking in the `chan_ooh323` `Q.931` `information-element parser` permits an `out-of-bounds read` that may allow an unauthenticated attacker to crash Asterisk using carefully crafted `setup packets`. 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.
Title Asterisk: Out-of-Bounds Read in Q.931 Information Element Parser (H.323 Addon)
Weaknesses CWE-125
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-26T19:53:10.021Z

Reserved: 2026-06-24T01:47:55.286Z

Link: CVE-2026-57184

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-26T20:17:56.517

Modified: 2026-10-27T15:08:50.630

Link: CVE-2026-57184

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T01:30:16Z

Weaknesses