high7.5
CVE-2019-18976
An issue was discovered in res_pjsip_t38.c in Sangoma Asterisk through 13.x and Certified Asterisk through 13.21-x.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Digium | Asterisk | from 13.0.0 through 13.29.1 |
| Digium | Certified Asterisk | Version 13.21 |
| Debian | Debian Linux | Version 9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- http://downloads.asterisk.org/pub/security/AST-2019-008.html
- https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html
- https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html
- https://seclists.org/fulldisclosure/2019/Nov/20
- https://www.asterisk.org/downloads/security-advisories
- https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1
- http://downloads.asterisk.org/pub/security/AST-2019-008.html
- https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html
- https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html
- https://seclists.org/fulldisclosure/2019/Nov/20
- https://www.asterisk.org/downloads/security-advisories
- https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1