Description
Use-after-free vulnerability in the resolver in nginx 0.6.18 through 1.8.0 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (worker process crash) or possibly have unspecified other impact via a crafted DNS response related to CNAME response processing.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nginx | 1.9.10-1 | — |
| Debian 13 | nginx | 1.9.10-1 | — |
| Debian 12 | nginx | 1.9.10-1 | — |
| Debian 8 | nginx | 1.6.2-5+deb8u1 | DSA-3473-1 |
| Debian 7 | nginx | 1.2.1-2.2+wheezy4 | DSA-3473-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | nginx | 1.9.10-0ubuntu1 | — |
| Ubuntu 14.04 LTS | nginx | 1.4.6-1ubuntu3.4 | USN-2892-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 2 | rh-nginx18-nginx | 1:1.8.1-1.el6 | RHSA-2016:1425 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE WebYast 1.3 | GeoIP | 1.4.7-2.10.1 | SUSE-SU-2016:1232-1 |
| SUSE WebYast 1.3 | nginx-1.0 | 1.0.15-0.29.2 | SUSE-SU-2016:1232-1 |
| SUSE Studio Onsite 1.3 | GeoIP | 1.4.7-2.10.1 | SUSE-SU-2016:1232-1 |
| SUSE Studio Onsite 1.3 | nginx-1.0 | 1.0.15-0.29.2 | SUSE-SU-2016:1232-1 |
| SUSE Lifecycle Management Server 1.3 | GeoIP | 1.4.7-2.10.1 | SUSE-SU-2016:1232-1 |
| SUSE Lifecycle Management Server 1.3 | nginx-1.0 | 1.0.15-0.29.2 | SUSE-SU-2016:1232-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | nginx | 1.11.4-2.5 | openSUSE-SU-2024:10044-1 |
Advisories 5
- RHSA-2016:1425 Red Hat Security Advisory: rh-nginx18-nginx security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-3473-1 nginx - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2892-1 nginx vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2016:1232-1 Security update for nginx-1.0 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10044-1 nginx-1.11.4-2.5 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- openSUSE-SU-2016:0371 vendor-advisory
- https://bto.bluecoat.com/security-advisory/sa115
- GLSA-201606-06 vendor-advisory
- 1034869 vdb-entry
- [nginx] 20160126 nginx security advisory (CVE-2016-0742, CVE-2016-0746, CVE-2016-0747) mailing-list
- RHSA-2016:1425 vendor-advisory
- DSA-3473 vendor-advisory
- USN-2892-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1302588
- https://support.apple.com/kb/HT212818
- 20210921 APPLE-SA-2021-09-20-4 Xcode 13 mailing-list