Vulnerability CVE-2020-35652
Published: 2021-01-29

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.

Type:

NVD-CWE-noinfo

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Digium -> Asterisk 

 References:
https://downloads.asterisk.org/pub/security/AST-2020-003.html
https://downloads.asterisk.org/pub/security/AST-2020-004.html
https://issues.asterisk.org/jira/browse/ASTERISK-29191
https://issues.asterisk.org/jira/browse/ASTERISK-29219
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