Vulnerability Details CVE-2021-31878
An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 52.5%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.0
References
- http://downloads.asterisk.org/pub/security/AST-2021-007.html
- http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html
- http://seclists.org/fulldisclosure/2021/Jul/48
- https://downloads.digium.com/pub/security/AST-2021-007.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29381
- http://downloads.asterisk.org/pub/security/AST-2021-007.html
- http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html
- http://seclists.org/fulldisclosure/2021/Jul/48
- https://downloads.digium.com/pub/security/AST-2021-007.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29381
Products affected by CVE-2021-31878
-
cpe:2.3:a:digium:asterisk:16.17.0
-
cpe:2.3:a:digium:asterisk:16.18.0
-
cpe:2.3:a:digium:asterisk:16.19.0
-
cpe:2.3:a:digium:asterisk:18.3.0
-
cpe:2.3:a:digium:asterisk:18.4.0
-
cpe:2.3:a:digium:asterisk:18.5.0