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CVE PROGRAM SOURCE RECORD2.3 Low

CVE-2026-57199

Asterisk: Asterisk app_sms.c copies externally controlled SMS lengths into fixed in-struct buffers

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Status
Published
Published
Updated
Assigning organization
GitHub_M

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, `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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

asterisk asterisk

  • < 20.20.1affected
  • >= 21.0.0-pre1, < 21.12.3affected
  • >= 22.0.0-pre1, < 22.10.1affected
  • >= 23.0.0-pre1, < 23.4.1affected

asterisk certified-asterisk

  • < 20.7-cert11affected
  • >= 22.8-cert1-pre1, < 22.8-cert3affected

References