CVE-2016-4450: canonical ubuntu_linux NULL Pointer Dereference
CVSS: 7.5v3.1HighModified
AliasesMGASA-2016-0216openSUSE-SU-2017:0361-1openSUSE-SU-2017:0362-1UBUNTU-CVE-2016-4450USN-2991-1DEBIAN-CVE-2016-4450DSA-3592-1
Published 07-06-2016Last modified 06-08-2024
Vulnerability summary
CVE-2016-4450 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 16.38% chance of exploitation in the next 30 days, higher than 96.9% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
16.38%
0%100%
Medium · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 07-06-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 3 sources · 3 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
High 7.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
16.38%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
0.00 pp
From 16.38% on 18-09-2026
18-09-202618-10-2026
EPSS score16.38%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- nginx< 1.10.1-1 | < 1.6.2-5+deb8u2
- debian_linuxEOL8.0
Canonical1 product
- ubuntu_linuxEOL14.04 | 15.10 | 16.04
F51 product
- nginxEOL≥ 1.3.9, < 1.10.1 | 1.11.0
Mageia1 product
- nginx< 1.6.2-5.2.mga5
Suse1 product
- nginx&distro=SUSE Package Hub 12< 1.8.1-9.1
Ubuntu1 product
- nginx< 1.4.6-1ubuntu3.5 | < 1.10.0-0ubuntu0.16.04.2
6 vendors · 7 products
References
15 links- mailman.nginx.org/pipermail/nginx-announce/2016/000179.htmlMailing ListX Refsource MLISTVendor AdvisoryREPORT
- bugzilla.suse.com/982505REPORT