PT-2016-3355 · Nginx+2 · Nginx+2

Published 2016-05-31 · Updated 2024-06-15 · CVE-2016-4450

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions nginx versions 1.10.0 through 1.10.1 nginx versions 1.11.x before 1.11.1

Description The issue is related to a NULL pointer dereference in the os/unix/ngx files.c component of the nginx platform. This can be exploited by a remote attacker to cause a denial of service, resulting in a worker process crash. The exploitation involves writing a client request body to a temporary file using a crafted request.

Recommendations For nginx versions 1.10.0 through 1.10.1, update to version 1.10.1 or later. For nginx versions 1.11.x before 1.11.1, update to version 1.11.1 or later. As a temporary workaround, consider restricting access to the os/unix/ngx files.c component to minimize the risk of exploitation.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2016-1568

BDU:2021-05139

CVE-2016-4450

DSA-3592-1

MGASA-2016-0216

OPENSUSE-SU-2017:0361-1

OPENSUSE-SU-2017:0362-1

OPENSUSE-SU-2024:10044-1

RHSA-2016:1425

SUSE-SU-2017:0190-1

USN-2991-1

Affected Products

Alt Linux

Nginx

Ubuntu

References · 50

• https://security.gentoo.org/glsa/201606-06 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2991-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05139 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-4450 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2016:1425 · Vendor Advisory
• http://debian.org/security/2016/dsa-3592 · Vendor Advisory
• http://mailman.nginx.org/pipermail/nginx-announce/2016/000179.html · Vendor Advisory
• https://osv.dev/vulnerability/USN-2991-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-2991-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4450 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10044-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/nginx · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2016-4450 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2016-4450 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2017:0361-1 · Vendor Advisory