Original 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.
Affected software
- nginx ≥ 0.6.18 < 1.8.1≥ 1.9.0 < 1.9.10 Fixed in: 1.8.1, 1.9.10 exact match
Details
- Published
- 2016-02-16
- Last modified
- 2024-08-06
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L- EPSS (30-day exploit probability)
- 8.66% (percentile 95)
References
- cve.org/CVE-2016-0747
- nvd.nist.gov/vuln/detail/CVE-2016-0747
- lists.opensuse.org/opensuse-updates/2016-02/msg00042.html
- bto.bluecoat.com/security-advisory/sa115
- security.gentoo.org/glsa/201606-06
- www.securitytracker.com/id/1034869
- mailman.nginx.org/pipermail/nginx/2016-January/049700.html
- access.redhat.com/errata/RHSA-2016:1425
- bugzilla.redhat.com/show_bug.cgi?id=1302589
- www.debian.org/security/2016/dsa-3473
- www.ubuntu.com/usn/USN-2892-1
- support.apple.com/kb/HT212818
- seclists.org/fulldisclosure/2021/Sep/36
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