CVE Vulnerability

CVE-2020-35776

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
http://seclists.org/fulldisclosure/2021/Feb/57 Mailing List Third Party Advisory
https://downloads.asterisk.org/pub/security/AST-2021-001.html Vendor Advisory
https://issues.asterisk.org/ Issue Tracking Vendor Advisory
https://issues.asterisk.org/jira/browse/ASTERISK-29227 Exploit Issue Tracking
http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
Information

Published : 2021-02-18 08:15

Updated : 2021-02-24 05:43

NVD link : CVE-2020-35776

Mitre link : CVE-2020-35776

Products Affected
No products.
CWE
CWE-120