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sangoma asterisk vulnerabilities and exploits
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7.5
CVSSv3
CVE-2021-26717
An issue exists in Sangoma Asterisk 16.x prior to 16.16.1, 17.x prior to 17.9.2, and 18.x prior to 18.2.1 and Certified Asterisk prior to 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 t...
Digium Asterisk
Digium Certified Asterisk 16.8
7.5
CVSSv3
CVE-2019-18976
An issue exists in res_pjsip_t38.c in Sangoma Asterisk up to and including 13.x and Certified Asterisk up to and including 13.21-x. If it receives a re-invite initiating T.38 faxing and has a port of 0 and no c line in the SDP, a NULL pointer dereference and crash will occur. Thi...
Digium Certified Asterisk 13.21
Digium Asterisk
Debian Debian Linux 9.0
7.5
CVSSv3
CVE-2019-15639
main/translate.c in Sangoma Asterisk 13.28.0 and 16.5.0 allows a remote malicious user to send a specific RTP packet during a call and cause a crash in a specific scenario.
Digium Asterisk
6.5
CVSSv3
CVE-2022-42705
A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated malicious user to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that As...
Sangoma Certified Asterisk 18.9
Sangoma Asterisk
Sangoma Asterisk 20.0.0
6.5
CVSSv3
CVE-2021-46837
res_pjsip_t38 in Sangoma Asterisk 16.x prior to 16.16.2, 17.x prior to 17.9.3, and 18.x prior to 18.2.2, and Certified Asterisk prior to 16.8-cert7, allows an malicious user to trigger a crash by sending an m=image line and zero port in a response to a T.38 re-invite initiated by...
Asterisk Certified Asterisk 16.8.0
Digium Asterisk
Debian Debian Linux 9.0
Debian Debian Linux 10.0
Debian Debian Linux 11.0
6.5
CVSSv3
CVE-2021-26713
A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk prior to 16.16.1, 17.x prior to 17.9.2, and 18.x prior to 18.2.1 and Certified Asterisk prior to 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold req...
Digium Asterisk
Digium Certified Asterisk 16.8
6.5
CVSSv3
CVE-2020-35776
A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote malicious user to crash Asterisk by deliberately misusing SIP 181 responses.
Digium Asterisk
6.5
CVSSv3
CVE-2020-35652
An issue exists in res_pjsip_diversion.c in Sangoma Asterisk prior to 13.38.0, 14.x up to and including 16.x prior to 16.15.0, 17.x prior to 17.9.0, and 18.x prior to 18.1.0. A crash can occur when a SIP message is received with a History-Info header that contains a tel-uri, or w...
Digium Asterisk
6.5
CVSSv3
CVE-2019-18790
An issue exists in channels/chan_sip.c in Sangoma Asterisk 13.x prior to 13.29.2, 16.x prior to 16.6.2, and 17.x prior to 17.0.1, and Certified Asterisk 13.21 before cert5. A SIP request can be sent to Asterisk that can change a SIP peer's IP address. A REGISTER does not nee...
Digium Certified Asterisk 13.21.0
Digium Asterisk
Debian Debian Linux 8.0
Debian Debian Linux 9.0
6.5
CVSSv3
CVE-2019-15297
res_pjsip_t38 in Sangoma Asterisk 15.x prior to 15.7.4 and 16.x prior to 16.5.1 allows an malicious user to trigger a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash occurs because of a NULL session media object dereference.
Digium Asterisk
CVSSv3
CVSSv2
CVSSv3
VMScore
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