CVEvulnerability
CVE-2019-18976
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-11-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-476
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.
Affected configurations
• digium asterisk (>= 13.0.0 <= 13.29.1)
• digium certified asterisk 13.21
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- http://downloads.asterisk.org/pub/security/AST-2019-008.html Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html Mailing List, Third Party Advisory
- https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html Third Party Advisory, VDB Entry
- https://seclists.org/fulldisclosure/2019/Nov/20 Mailing List, Third Party Advisory
- https://www.asterisk.org/downloads/security-advisories Vendor Advisory
- https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1 Third Party Advisory
- http://downloads.asterisk.org/pub/security/AST-2019-008.html Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html Mailing List, Third Party Advisory
- https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html Third Party Advisory, VDB Entry
- https://seclists.org/fulldisclosure/2019/Nov/20 Mailing List, Third Party Advisory
- https://www.asterisk.org/downloads/security-advisories Vendor Advisory
- https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1 Third Party Advisory