CVE - CVE-2021-26717

CVE-ID
CVE-2021-26717	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
An issue was discovered in Sangoma Asterisk 16.x before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6. When re-negotiating for T.38, if the initial remote response was delayed just enough, Asterisk would send both audio and T.38 in the SDP. If this happened, and the remote responded with a declined T.38 stream, then Asterisk would crash.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://downloads.asterisk.org/pub/security/AST-2021-002.html CONFIRM:https://issues.asterisk.org/jira/browse/ASTERISK-29203 FULLDISC:20210218 AST-2021-002: Remote crash possible when negotiating T.38 URL:http://seclists.org/fulldisclosure/2021/Feb/58 MISC:http://packetstormsecurity.com/files/161471/Asterisk-Project-Security-Advisory-AST-2021-002.html MISC:https://downloads.asterisk.org/pub/security/
Assigning CNA
MITRE Corporation
Date Record Created
20210205	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210205)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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