The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (invalid pointer dereference and worker process crash) via a crafted UDP DNS response.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Nginx | F5 | 0.6.18 (including) | 1.8.1 (excluding) |
| Nginx | F5 | 1.9.0 (including) | 1.9.10 (excluding) |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | RedHat | rh-nginx18-nginx-1:1.8.1-1.el6 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | RedHat | rh-nginx18-nginx-1:1.8.1-1.el6 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | RedHat | rh-nginx18-nginx-1:1.8.1-1.el6 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-nginx18-nginx-1:1.8.1-1.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | RedHat | rh-nginx18-nginx-1:1.8.1-1.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | RedHat | rh-nginx18-nginx-1:1.8.1-1.el7 | * |
| Nginx | Ubuntu | devel | * |
| Nginx | Ubuntu | precise | * |
| Nginx | Ubuntu | trusty | * |
| Nginx | Ubuntu | upstream | * |
| Nginx | Ubuntu | vivid | * |
| Nginx | Ubuntu | wily | * |
| Nginx | Ubuntu | xenial | * |
| Nginx | Ubuntu | yakkety | * |
| Nginx | Ubuntu | zesty | * |