Vulnerability Description
There is a stack consumption vulnerability in the res_http_websocket.so module of Asterisk through 13.23.0, 14.7.x through 14.7.7, and 15.x through 15.6.0 and Certified Asterisk through 13.21-cert2. It allows an attacker to crash Asterisk via a specially crafted HTTP request to upgrade the connection to a websocket.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Digium | Asterisk | >= 13.0.0, <= 13.23.0 |
| Digium | Certified Asterisk | 11.6 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://downloads.asterisk.org/pub/security/AST-2018-009.htmlPatchVendor Advisory
- http://packetstormsecurity.com/files/149453/Asterisk-Project-Security-Advisory-AThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2018/Sep/31Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/105389Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041694Third Party AdvisoryVDB Entry
- https://issues.asterisk.org/jira/browse/ASTERISK-28013Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00034.htmlMailing ListThird Party Advisory
- https://seclists.org/bugtraq/2018/Sep/53Mailing ListPatchThird Party Advisory
- https://security.gentoo.org/glsa/201811-11Third Party Advisory
- https://www.debian.org/security/2018/dsa-4320Third Party Advisory
- http://downloads.asterisk.org/pub/security/AST-2018-009.htmlPatchVendor Advisory
- http://packetstormsecurity.com/files/149453/Asterisk-Project-Security-Advisory-AThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2018/Sep/31Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/105389Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041694Third Party AdvisoryVDB Entry
FAQ
What is CVE-2018-17281?
CVE-2018-17281 is a vulnerability with a CVSS score of 7.5 (HIGH). There is a stack consumption vulnerability in the res_http_websocket.so module of Asterisk through 13.23.0, 14.7.x through 14.7.7, and 15.x through 15.6.0 and Certified Asterisk through 13.21-cert2. I...
How severe is CVE-2018-17281?
CVE-2018-17281 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-17281?
Check the references section above for vendor advisories and patch information. Affected products include: Digium Asterisk, Digium Certified Asterisk, Debian Debian Linux.