VulnerabilityModified
CVE-2021-31878
An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1.
MEDIUM 6.5EPSS 2.43%
Does this matter?
Lower severity and a low EPSS score (2.43%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.43% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- digium/asterisk
- Source
- cve@mitre.org
References
- http://downloads.asterisk.org/pub/security/AST-2021-007.htmlPatch, Vendor Advisory
- http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.htmlPatch, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2021/Jul/48Mailing List, Patch, Third Party Advisory
- https://downloads.digium.com/pub/security/AST-2021-007.htmlPatch, Vendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29381Exploit, Issue Tracking, Vendor Advisory
- http://downloads.asterisk.org/pub/security/AST-2021-007.htmlPatch, Vendor Advisory
- http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.htmlPatch, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2021/Jul/48Mailing List, Patch, Third Party Advisory
- https://downloads.digium.com/pub/security/AST-2021-007.htmlPatch, Vendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29381Exploit, Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.