Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Digium | Asterisk | < 13.38.0 |
References
- https://downloads.asterisk.org/pub/security/AST-2020-003.htmlVendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2020-004.htmlVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29191ExploitVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29219Vendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2020-003.htmlVendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2020-004.htmlVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29191ExploitVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29219Vendor Advisory
FAQ
What is CVE-2020-35652?
CVE-2020-35652 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2020-35652?
CVE-2020-35652 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-35652?
Check the references section above for vendor advisories and patch information. Affected products include: Digium Asterisk.