Bug 2562437 (CVE-2026-57195) - CVE-2026-57195 asterisk: asterisk: Denial of Service via HTTP digest authentication in AMI
Summary: CVE-2026-57195 asterisk: asterisk: Denial of Service via HTTP digest authenti...
Keywords:
Status: NEW
Alias: CVE-2026-57195
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2564866 2564868 2564870 2564871
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-27 21:21 UTC by OSIDB Bzimport
Modified: 2026-11-02 09:59 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-10-27 21:21:58 UTC 
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 NULL pointer dereference in the `Asterisk Manager Interface (AMI)` may allow an unauthenticated attacker to crash Asterisk when `Digest Authentication` is used via `HTTP`. The Asterisk `HTTP` web server, AMI, and AMI access via `HTTP` must all be enabled; each is disabled by default. The attacker must be able to connect to the `HTTP` server, which binds only to `127.0.0.1` by default even when enabled. 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.
Note You need to log in before you can comment on or make changes to this bug.