CVE-2021-26906

 

Published at: - 18-02-2021 09:15

Last modified: - 26-09-2022 05:45

Total changes: - 4

Description

An issue was discovered in res_pjsip_session.c in Digium Asterisk through 13.38.1; 14.x, 15.x, and 16.x through 16.16.0; 17.x through 17.9.1; and 18.x through 18.2.0, and Certified Asterisk through 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://issues.asterisk.org/jira/browse/ASTERISK-29196
• https://downloads.asterisk.org/pub/security/
• https://downloads.asterisk.org/pub/security/AST-2021-005.html
• 20210218 AST-2021-005: Remote Crash Vulnerability in PJSIP channel driver-Mailing List, Patch, Third Party Advisory
• http://packetstormsecurity.com/files/161477/Asterisk-Project-Security-Advisory-AST-2021-005.html

 

Keywords

NVD

 

CVE-2021-26906

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures