Published: 18/02/2021 Updated: 24/02/2021

CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8

VMScore: 383

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

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 malicious user to crash Asterisk by deliberately misusing SIP 181 responses.

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digium asterisk

Debian Bug report logs - #983158 asterisk: CVE-2020-35776 Package: src:asterisk; Maintainer for src:asterisk is Debian VoIP Team <pkg-voip-maintainers@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sat, 20 Feb 2021 06:39:02 UTC Severity: important Tags: security, upstream Found ...

CWE-120 http://seclists.org/fulldisclosure/2021/Feb/57 https://downloads.asterisk.org/pub/security/AST-2021-001.html https://issues.asterisk.org/https://issues.asterisk.org/jira/browse/ASTERISK-29227 http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=983158 https://nvd.nist.gov

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CVE-2020-35776

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