Advisory Published
Updated

CVE-2020-35652

First published: Fri Jan 29 2021(Updated: )

An issue was discovered in res_pjsip_diversion.c in Sangoma Asterisk before 13.38.0, 14.x through 16.x before 16.15.0, 17.x before 17.9.0, and 18.x before 18.1.0. A crash can occur when a SIP message is received with a History-Info header that contains a tel-uri, or when a SIP 181 response is received that contains a tel-uri in the Diversion header.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Digium Asterisk<13.38.0
Digium Asterisk>=14.0<16.15.0
Digium Asterisk>=17.0<17.9.0
Digium Asterisk>=18.0<18.1.0

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Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2020-35652.

  • What is the severity of CVE-2020-35652?

    The severity of CVE-2020-35652 is medium (6.5).

  • What is the affected software?

    The affected software is Digium Asterisk versions before 13.38.0, 14.x through 16.x before 16.15.0, 17.x before 17.9.0, and 18.x before 18.1.0.

  • What is the description of CVE-2020-35652?

    CVE-2020-35652 is a vulnerability in Sangoma Asterisk that can cause a crash when a SIP message with a History-Info header containing a tel-uri is received, or when a SIP 181 response is received.

  • How can I fix CVE-2020-35652?

    To fix CVE-2020-35652, it is recommended to upgrade to Sangoma Asterisk version 13.38.0, 16.15.0, 17.9.0, or 18.1.0 or later.

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