Now Available: Security Releases for Certified Asterisk 13.13 and Asterisk 13, 14 and 15

The Asterisk Development Team has announced security releases for
Certified Asterisk 13.13 and Asterisk 13, 14 and 15. The available
security releases are released as versions 13.13-cert7, 13.18.1,
14.7.1 and 15.1.1.

These releases are available for immediate download at

The release of these versions resolves the following security

  • AST-2017-009: Buffer overflow in pjproject header parsing can
    cause a crash in Asterisk
    By carefully crafting invalid values in the Cseq and the Via
    header port, pjproject’s packet parsing code can create strings
    larger than the buffer allocated to hold them. This will usually
    cause Asterisk to crash immediately. The packets do not have to
    be authenticated.

  • AST-2017-010: Buffer overflow in CDR’s set user
    No size checking is done when setting the user field for Party B
    on a CDR. Thus, it is possible for someone to use an arbitrarily
    large string and write past the end of the user field storage
    buffer. The earlier AST-2017-001 advisory for the CDR user field
    overflow was for the Party A buffer.

  • AST-2017-011: Memory leak in pjsip session resource
    A memory leak occurs when an Asterisk pjsip session object is
    created and that call gets rejected before the session itself is
    fully established. When this happens the session object never
    gets destroyed.

For a full list of changes in the current releases, please see the

The security advisories are available at:

Thank you for your continued support of Asterisk!