CVE-2016-4450 : os/unix/ngx_files.c in nginx before 1.10.1 and 1.11.x before 1.11.1 allows remot

os/unix/ngx_files.c in nginx before 1.10.1 and 1.11.x before 1.11.1 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a crafted request, involving writing a client request body to a temporary file.

Published 2016-06-07 14:06:14

Updated 2025-04-12 10:46:41

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2016-4450

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
F5 » Nginx
Versions from including (>=) 1.3.9 and before (<) 1.10.1
cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*
Matching versions
F5 » Nginx » Version: 1.11.0
cpe:2.3:a:f5:nginx:1.11.0:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 14.04 ESM Edition
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 15.10
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 16.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-4450

EPSS FAQ

2.99%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 86 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-4450

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2016-4450

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-4450

http://www.debian.org/security/2016/dsa-3592

Debian -- Security Information -- DSA-3592-1 nginx
Third Party Advisory
http://www.securityfocus.com/bid/90967

nginx CVE-2016-4450 Denial of Service Vulnerability
Third Party Advisory;VDB Entry
https://security.gentoo.org/glsa/201606-06

nginx: Multiple vulnerabilities (GLSA 201606-06) — Gentoo security
Third Party Advisory

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2016:1425

RHSA-2016:1425 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://www.ubuntu.com/usn/USN-2991-1

USN-2991-1: nginx vulnerability | Ubuntu security notices
Third Party Advisory
http://mailman.nginx.org/pipermail/nginx-announce/2016/000179.html

[nginx-announce] nginx security advisory (CVE-2016-4450)
Vendor Advisory
http://www.securitytracker.com/id/1036019

nginx Null Pointer Dereference in ngx_chain_to_iovec() Lets Remote Users Deny Service - SecurityTracker
Third Party Advisory;VDB Entry

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Vulnerability Details : CVE-2016-4450

Products affected by CVE-2016-4450

Exploit prediction scoring system (EPSS) score for CVE-2016-4450

CVSS scores for CVE-2016-4450

CWE ids for CVE-2016-4450

References for CVE-2016-4450