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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade nginx | Aug 30, 2017 | Feb 15, 2016 |
| Debian | — | Upgrade nginx | Feb 15, 2016 | Feb 11, 2016 |
| Freebsd | — | Upgrade nginxUpgrade nginx-devel | Dec 10, 2025 | Jan 30, 2016 |
| Gentoo Linux | — | Upgrade www-servers/nginx. | Oct 30, 2017 | Feb 15, 2016 |
| Nginx | — | Upgrade to nginx version 1.8.1Upgrade to nginx version 1.9.10 | Feb 15, 2016 | Feb 15, 2016 |
| Suse | — | Upgrade nginx-sourceUpgrade nginx | Feb 15, 2016 | Feb 15, 2016 |
| Ubuntu | — | Upgrade nginx-lightUpgrade nginx-extrasUpgrade nginx-coreUpgrade nginx-naxsiUpgrade nginx-full | Feb 15, 2016 | Feb 9, 2016 |
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