CVE-2021-26717

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.

Link	Resource
https://downloads.asterisk.org/pub/security/	Vendor Advisory
http://seclists.org/fulldisclosure/2021/Feb/58	Mailing List Patch
https://issues.asterisk.org/jira/browse/ASTERISK-29203	Issue Tracking Patch
https://downloads.asterisk.org/pub/security/AST-2021-002.html	Vendor Advisory
http://packetstormsecurity.com/files/161471/Asterisk-Project-Security-Advisory-AST-2021-002.html	Third Party Advisory

Configuration 1

cpe:2.3:a:digium:certified_asterisk:16.8:cert1-rc1:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert1-rc2:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert1-rc3:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert1-rc4:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert2:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert3:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert4:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert4-rc1:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert4-rc2:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert4-rc3:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert4-rc4:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:-:*:*:*:*:*:* cpe:2.3:a:digium:certified_asterisk:16.8:cert5:*:*:*:*:*:* cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*

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Published : 2021-02-18 08:15

Updated : 2021-02-24 05:34

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NVD link : CVE-2021-26717

Mitre link : CVE-2021-26717

No products.

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