nginx: NULL pointer dereference while writing client request body
Published Jun 7, 2016
7.5
HIGHCVSS 3.1
EPSS 16.38%
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.
Affected products
No data.
Configuration 1
- 14.04
- 15.10
- 16.04
Configuration 3
- 8.0
No data.
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-nginx18-nginx-1:1.8.1-1.el6
Fixed · RHSA-2016:1425
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
rh-nginx18-nginx-1:1.8.1-1.el6
Fixed · RHSA-2016:1425
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-nginx18-nginx-1:1.8.1-1.el6
Fixed · RHSA-2016:1425
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-nginx18-nginx-1:1.8.1-1.el7
Fixed · RHSA-2016:1425
Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
rh-nginx18-nginx-1:1.8.1-1.el7
Fixed · RHSA-2016:1425
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-nginx18-nginx-1:1.8.1-1.el7
Fixed · RHSA-2016:1425
Red Hat Software Collections
nginx16-nginx
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-nginx18-nginx-1:1.8.1-1.el6 | Fixed | RHSA-2016:1425 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | rh-nginx18-nginx-1:1.8.1-1.el6 | Fixed | RHSA-2016:1425 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-nginx18-nginx-1:1.8.1-1.el6 | Fixed | RHSA-2016:1425 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-nginx18-nginx-1:1.8.1-1.el7 | Fixed | RHSA-2016:1425 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | rh-nginx18-nginx-1:1.8.1-1.el7 | Fixed | RHSA-2016:1425 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-nginx18-nginx-1:1.8.1-1.el7 | Fixed | RHSA-2016:1425 |
| Red Hat Software Collections | nginx16-nginx | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (38 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 16.38% (0.16376) | 96.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 16.38% (0.16376) | 96.55th | v5 (v2026.06.15) |
| Mar 4, 2026 | 4.02% (0.04016) | 88.24th | v4 (v2025.03.14) |
| Mar 1, 2026 | 2.07% (0.02069) | 83.72th | v4 (v2025.03.14) |
| Feb 4, 2026 | 4.02% (0.04016) | 88.17th | v4 (v2025.03.14) |
| Feb 1, 2026 | 2.07% (0.02069) | 83.61th | v4 (v2025.03.14) |
| Jan 4, 2026 | 4.02% (0.04016) | 88.11th | v4 (v2025.03.14) |
| Jan 1, 2026 | 2.07% (0.02069) | 83.54th | v4 (v2025.03.14) |
| Dec 28, 2025 | 4.02% (0.04016) | 88.11th | v4 (v2025.03.14) |
| Dec 27, 2025 | 5.62% (0.05619) | 90.09th | v4 (v2025.03.14) |
| Dec 4, 2025 | 4.02% (0.04016) | 88.03th | v4 (v2025.03.14) |
| Dec 1, 2025 | 2.07% (0.02069) | 83.44th | v4 (v2025.03.14) |
| Nov 4, 2025 | 4.09% (0.04093) | 88.07th | v4 (v2025.03.14) |
| Nov 1, 2025 | 2.25% (0.02246) | 84.06th | v4 (v2025.03.14) |
| Oct 4, 2025 | 4.09% (0.04093) | 88.10th | v4 (v2025.03.14) |
| Oct 1, 2025 | 2.25% (0.02246) | 84.03th | v4 (v2025.03.14) |
| Sep 9, 2025 | 4.30% (0.04298) | 88.42th | v4 (v2025.03.14) |
| Sep 4, 2025 | 3.14% (0.03144) | 86.38th | v4 (v2025.03.14) |
| Sep 1, 2025 | 1.64% (0.01644) | 81.32th | v4 (v2025.03.14) |
| Aug 4, 2025 | 3.14% (0.03144) | 86.38th | v4 (v2025.03.14) |
| Aug 1, 2025 | 1.64% (0.01644) | 81.30th | v4 (v2025.03.14) |
| Jul 4, 2025 | 2.99% (0.02992) | 85.98th | v4 (v2025.03.14) |
| Jul 1, 2025 | 1.38% (0.01378) | 79.45th | v4 (v2025.03.14) |
| Jun 4, 2025 | 2.99% (0.02992) | 85.90th | v4 (v2025.03.14) |
| Jun 1, 2025 | 1.38% (0.01378) | 79.39th | v4 (v2025.03.14) |
| May 4, 2025 | 2.99% (0.02992) | 85.81th | v4 (v2025.03.14) |
| May 1, 2025 | 1.38% (0.01378) | 79.30th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.99% (0.02992) | 85.34th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.11% (0.10109) | 88.40th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.99% (0.02992) | 85.65th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.38% (0.04379) | 92.68th | v3 (v2023.03.01) |
| Sep 7, 2024 | 4.38% (0.04379) | 92.55th | v3 (v2023.03.01) |
| Jun 20, 2023 | 2.24% (0.02237) | 87.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.91% (0.01909) | 86.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (11)
- http://mailman.nginx.org/pipermail/nginx-announce/2016/000179.html mailing-listx_refsource_MLISTVendor Advisory
- http://www.debian.org/security/2016/dsa-3592 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/90967 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1036019 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2991-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1425 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-4450 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1341462 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-4450
- https://security.gentoo.org/glsa/201606-06 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-4450
| Link | Providers | Tags |
|---|---|---|
| http://mailman.nginx.org/pipermail/nginx-announce/2016/000179.html | mailing-listx_refsource_MLISTVendor Advisory | |
| http://www.debian.org/security/2016/dsa-3592 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.securityfocus.com/bid/90967 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1036019 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://www.ubuntu.com/usn/USN-2991-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2016:1425 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-4450 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1341462 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-4450 | ||
| https://security.gentoo.org/glsa/201606-06 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2016-4450 |
Change history (0)
No recorded changes yet.