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.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| 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 | esm-infra-legacy/trusty | * |
| Nginx | Ubuntu | esm-infra/xenial | * |
| Nginx | Ubuntu | precise | * |
| Nginx | Ubuntu | trusty | * |
| Nginx | Ubuntu | trusty/esm | * |
| Nginx | Ubuntu | upstream | * |
| Nginx | Ubuntu | vivid | * |
| Nginx | Ubuntu | wily | * |
| Nginx | Ubuntu | xenial | * |
| Nginx | Ubuntu | yakkety | * |
| Nginx | Ubuntu | zesty | * |
Potential Mitigations
References
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.html
- http://mailman.nginx.org/pipermail/nginx/2016-January/049700.html
- http://seclists.org/fulldisclosure/2021/Sep/36
- http://www.debian.org/security/2016/dsa-3473
- http://www.securitytracker.com/id/1034869
- http://www.ubuntu.com/usn/USN-2892-1
- https://access.redhat.com/errata/RHSA-2016:1425
- https://bto.bluecoat.com/security-advisory/sa115
- https://bugzilla.redhat.com/show_bug.cgi?id=1302587
- https://security.gentoo.org/glsa/201606-06
- https://support.apple.com/kb/HT212818
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.html
- http://mailman.nginx.org/pipermail/nginx/2016-January/049700.html
- http://seclists.org/fulldisclosure/2021/Sep/36
- http://www.debian.org/security/2016/dsa-3473
- http://www.securitytracker.com/id/1034869
- http://www.ubuntu.com/usn/USN-2892-1
- https://access.redhat.com/errata/RHSA-2016:1425
- https://bto.bluecoat.com/security-advisory/sa115
- https://bugzilla.redhat.com/show_bug.cgi?id=1302587
- https://security.gentoo.org/glsa/201606-06
- https://support.apple.com/kb/HT212818