7.5

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.

Data is provided by the National Vulnerability Database (NVD)
Digium ≫ Asterisk Version >= 16.0.0 < 16.16.1
Digium ≫ Asterisk Version >= 17.0.0 < 17.9.2
Digium ≫ Asterisk Version >= 18.0 < 18.2.1
Digium ≫ Certified Asterisk Version16.8 Update-
Digium ≫ Certified Asterisk Version16.8 Updatecert1-rc1
Digium ≫ Certified Asterisk Version16.8 Updatecert1-rc2
Digium ≫ Certified Asterisk Version16.8 Updatecert1-rc3
Digium ≫ Certified Asterisk Version16.8 Updatecert1-rc4
Digium ≫ Certified Asterisk Version16.8 Updatecert2
Digium ≫ Certified Asterisk Version16.8 Updatecert3
Digium ≫ Certified Asterisk Version16.8 Updatecert4
Digium ≫ Certified Asterisk Version16.8 Updatecert4-rc1
Digium ≫ Certified Asterisk Version16.8 Updatecert4-rc2
Digium ≫ Certified Asterisk Version16.8 Updatecert4-rc3
Digium ≫ Certified Asterisk Version16.8 Updatecert4-rc4
Digium ≫ Certified Asterisk Version16.8 Updatecert5
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.44% 0.623
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
http://seclists.org/fulldisclosure/2021/Feb/58
Patch
Third Party Advisory
Mailing List
https://issues.asterisk.org/jira/browse/ASTERISK-29203
Patch
Vendor Advisory
Issue Tracking