Summary
generated automatically from NVD datanginx versions before 1.0.14, and 1.1.x versions before 1.1.17, contain a use-after-free flaw (CWE-416) in how backend responses are handled. A remote HTTP server could send a crafted backend response, combined with a client request, to read sensitive information from the nginx process memory. The issue is rated 5.0 (MEDIUM) under CVSS v2.0, with a confidentiality impact only. Fedora and Debian Linux 6.0 are also listed as affected.
NVD description
Use-after-free vulnerability in nginx before 1.0.14 and 1.1.x before 1.1.17 allows remote HTTP servers to obtain sensitive information from process memory via a crafted backend response, in conjunction with a client request.
EPSS · FIRST.org
10.6%probability of exploitation in the next 30 days
Higher than 95% 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 v2.0 Score
Information
- Published
- 17 avr. 2012
- Updated
- 16 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 (42)
- http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077966.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076646.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076671.htmlThird Party Advisory
- http://nginx.org/download/patch.2012.memory.txtPatchVendor Advisory
- http://nginx.org/en/security_advisories.htmlPatchVendor Advisory
- http://osvdb.org/80124Broken Link
- http://seclists.org/bugtraq/2012/Mar/65Mailing ListThird Party Advisory
- http://secunia.com/advisories/48465Third Party Advisory
- http://secunia.com/advisories/48577Third Party Advisory
- http://security.gentoo.org/glsa/glsa-201203-22.xmlThird Party Advisory
- http://trac.nginx.org/nginx/changeset/4530/nginxPatchVendor Advisory
- http://trac.nginx.org/nginx/changeset/4531/nginxPatchVendor Advisory
- http://www.debian.org/security/2012/dsa-2434Third Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:043Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/03/15/5Mailing ListPatchThird Party Advisory
- + 27 more references on NVD
Similar CVEs
Other vulnerabilities of type CWE-416
Running nginx? Know which CVEs hit your version.
Add the product and its version: cveo.tech lists the CVEs that affect it right away, then alerts you by email when a new one affects it — including before NVD has finished its analysis. Free, an account is all it takes.