Detections
Analytics
CVE-2019-18976
high
Description
An issue was discovered in res_pjsip_t38.c in Sangoma Asterisk through 13.x and Certified Asterisk through 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. This is different from CVE-2019-18940.
References
https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1
https://www.asterisk.org/downloads/security-advisories
https://seclists.org/fulldisclosure/2019/Nov/20
https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html
https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html
http://downloads.asterisk.org/pub/security/AST-2019-008.html