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
| Link | Resource |
|---|---|
| http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html | Patch Third Party Advisory |
| 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 Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
24 Feb 2021, 17:43
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 4.3
v3 : 6.5 |
| CWE | CWE-120 | |
| CPE | cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* | |
| References | (MISC) http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html - Patch, Third Party Advisory | |
| References | (CONFIRM) https://downloads.asterisk.org/pub/security/AST-2021-001.html - Vendor Advisory | |
| References | (CONFIRM) https://issues.asterisk.org/jira/browse/ASTERISK-29227 - Exploit, Issue Tracking, Patch, Vendor Advisory | |
| References | (FULLDISC) http://seclists.org/fulldisclosure/2021/Feb/57 - Mailing List, Third Party Advisory | |
| References | (MISC) https://issues.asterisk.org/ - Issue Tracking, Vendor Advisory |
19 Feb 2021, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
18 Feb 2021, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-02-18 20:15
Updated : 2023-12-10 13:41
NVD link : CVE-2020-35776
Mitre link : CVE-2020-35776
CVE.ORG link : CVE-2020-35776
JSON object : View
Products Affected
digium
- asterisk
CWE
CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')