Summary
generated automatically from NVD dataThe resolver component in nginx (versions before 1.8.1, and 1.9.x before 1.9.10) contains a flaw, classified as CWE-476, that leads to an invalid pointer dereference. A remote attacker can send a crafted UDP DNS response to crash the nginx worker process, causing a denial of service. The issue is rated 7.5 (HIGH) under CVSS v3.1, with a network attack vector, no privileges required and a high availability impact.
NVD description
The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (invalid pointer dereference and worker process crash) via a crafted UDP DNS response.
EPSS · FIRST.org
82.4%probability of exploitation in the next 30 days
Higher than 99% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-11-02, recomputed daily by FIRST.org.
CVSS v3.1 Score
Information
- Published
- 15 févr. 2016
- Updated
- 17 juin 2026
- Status
- Modified
- Source
- secalert@redhat.com
Affected products
Bounds published by NVD: "< 8.4.27" means 8.4.27 is no longer vulnerable. The fixed release to install is in the vendor advisory.
Weaknesses (CWE)
References (22)
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.htmlMailing ListThird Party 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=1302587Issue 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://seclists.org/fulldisclosure/2021/Sep/36Mailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3473Third Party Advisory
- + 7 more references on NVD
Similar CVEs
Other vulnerabilities of type CWE-476
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