CVE-2020-35776

medium

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

https://issues.asterisk.org/jira/browse/ASTERISK-29227

https://issues.asterisk.org/

https://downloads.asterisk.org/pub/security/AST-2021-001.html

http://seclists.org/fulldisclosure/2021/Feb/57

http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html

Details

Source: Mitre, NVD

Published: 2021-02-18

Updated: 2021-02-24

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H