Vulnerability Description
The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Nginx | >= 0.6.18, < 1.8.1 |
| Canonical | Ubuntu Linux | 14.04 |
| Debian | Debian Linux | 7.0 |
| Opensuse | Leap | 42.1 |
| Apple | Xcode | < 13.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.htmlMailing ListThird Party Advisory
- http://mailman.nginx.org/pipermail/nginx/2016-January/049700.htmlVendor Advisory
- http://seclists.org/fulldisclosure/2021/Sep/36Mailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3473Third Party Advisory
- http://www.securitytracker.com/id/1034869Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2892-1Third Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1425Third Party Advisory
- https://bto.bluecoat.com/security-advisory/sa115Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1302589Issue TrackingPatchThird Party Advisory
- https://security.gentoo.org/glsa/201606-06Third Party Advisory
- https://support.apple.com/kb/HT212818Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.htmlMailing ListThird Party Advisory
- http://mailman.nginx.org/pipermail/nginx/2016-January/049700.htmlVendor Advisory
- http://seclists.org/fulldisclosure/2021/Sep/36Mailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3473Third Party Advisory
FAQ
What is CVE-2016-0747?
CVE-2016-0747 is a vulnerability with a CVSS score of 5.3 (MEDIUM). The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) vi...
How severe is CVE-2016-0747?
CVE-2016-0747 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-0747?
Check the references section above for vendor advisories and patch information. Affected products include: F5 Nginx, Canonical Ubuntu Linux, Debian Debian Linux, Opensuse Leap, Apple Xcode.