# CVE-2018-16845: libnginx-mod-http-auth-pam: nginx before versions 1.15.6, 1.14.1 has a vulnerability in the ngx_http_mp4_module, which might allow an attacker to...

CVE-2018-16845 is fixed in 25 products on 1 platform, first by libnginx-mod-http-auth-pam 1.14.0-0ubuntu1.2, released November 5, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-16845
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0985
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 5, 2018

## Description

nginx before versions 1.15.6, 1.14.1 has a vulnerability in the ngx_http_mp4_module, which might allow an attacker to cause infinite loop in a worker process, cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted mp4 file. The issue only affects nginx if it is built with the ngx_http_mp4_module (the module is not built by default) and the .mp4. directive is used in the configuration file. Further, the attack is only possible if an attacker is able to trigger processing of a specially crafted mp4 file with the ngx_http_mp4_module.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libnginx-mod-http-auth-pam Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-auth-pam 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-auth-pam-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-cache-purge Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-cache-purge 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-cache-purge-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-dav-ext Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-dav-ext 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-dav-ext-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-echo Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-echo 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-echo-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-fancyindex Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-fancyindex 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-fancyindex-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-geoip Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-geoip 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-geoip-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-headers-more-filter Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-headers-more-filter 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-headers-more-filter-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-image-filter Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-image-filter 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-image-filter-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-lua Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-lua 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-lua-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-ndk Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-ndk 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-ndk-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-perl Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-perl 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-perl-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-subs-filter Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-subs-filter 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-subs-filter-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-uploadprogress Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-uploadprogress 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-uploadprogress-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-upstream-fair Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-upstream-fair 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-upstream-fair-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-http-xslt-filter Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-http-xslt-filter 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-http-xslt-filter-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-mail Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-mail 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-mail-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-nchan Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-nchan 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-nchan-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-rtmp Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-rtmp 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-rtmp-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | libnginx-mod-stream Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [libnginx-mod-stream 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnginx-mod-stream-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | nginx Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [nginx 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-nginx-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | nginx-common Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [nginx-common 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-nginx-common-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | nginx-core Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [nginx-core 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-nginx-core-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | nginx-extras Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [nginx-extras 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-nginx-extras-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | nginx-full Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [nginx-full 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-nginx-full-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |
| Linux | nginx-light Ubuntu 18.04.6 LTS (bionic) | 1.14.0-0ubuntu1.2 | [nginx-light 1.14.0-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-nginx-light-1.14.0-0ubuntu1.2.md) | Nov 5, 2018 |

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