Description
A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses.
References (5)
Core 5
Core References
Issue Tracking, Vendor Advisory x_refsource_misc
https://issues.asterisk.org/
Mailing List, Third Party Advisory mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Feb/57
Vendor Advisory x_refsource_confirm
https://downloads.asterisk.org/pub/security/AST-2021-001.html
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
https://issues.asterisk.org/jira/browse/ASTERISK-29227
Patch, Third Party Advisory x_refsource_misc
http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html
Scores
CVSS v3
6.5
EPSS
0.0008
EPSS Percentile
24.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-120
Status
published
Products (1)
digium/asterisk
13.0.0 - 13.38.1
Published
Feb 18, 2021
Tracked Since
Feb 18, 2026