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CVSSv2

CVE-2021-31878

Published: 30/07/2021 Updated: 07/08/2021
CVSS v2 Base Score: 4 | Impact Score: 2.9 | Exploitability Score: 8
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 356
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
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Vulnerability Summary

An issue exists in PJSIP in Asterisk prior to 16.19.1 and prior to 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request.

Vulnerability Trend

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digium asterisk 16.17.0

digium asterisk 16.18.0

digium asterisk 16.19.0

digium asterisk 18.3.0

digium asterisk 18.4.0

digium asterisk 18.5.0

Mailing Lists

Full Disclosure: AST-2021-007: Remote Crash Vulnerability in PJSIP channel driver
<!--X-Body-Begin--> <!--X-User-Header--> Full Disclosure mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> AST-2021-007: Remote Crash Vulnerability in PJSIP channel driver <!--X-Subject-Header-End--> <!--X-Head-of-Message--> ...

References

CWE-617https://downloads.digium.com/pub/security/AST-2021-007.htmlhttp://seclists.org/fulldisclosure/2021/Jul/48http://downloads.asterisk.org/pub/security/AST-2021-007.htmlhttp://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.htmlhttps://issues.asterisk.org/jira/browse/ASTERISK-29381https://nvd.nist.govhttp://seclists.org/fulldisclosure/2021/Jul/48
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2022-38028CVE-2024-32406CVE-2024-25624IMAPCVE-2024-2310CVE-2024-0874CVE-2024-20359XXEremote code execution
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