Bug 2562442 (CVE-2026-57199) - CVE-2026-57199 asterisk: Asterisk: Denial of Service via buffer overflow in SMS dialplan application
Summary: CVE-2026-57199 asterisk: Asterisk: Denial of Service via buffer overflow in S...
Keywords:
Status: NEW
Alias: CVE-2026-57199
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2564893 2564894 2564896 2564897
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-27 22:01 UTC by OSIDB Bzimport
Modified: 2026-11-02 10:01 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-10-27 22:01:41 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, `app_sms.c` copies externally controlled `SMS` lengths into `fixed in-struct buffers` without sufficient bounds checks, allowing an attacker to corrupt memory or crash Asterisk. The administrator must explicitly use the `SMS` dialplan application, which is useful when routing calls to or from `analog devices`, and must not have ensured that data passed to the application is valid. 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.
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