# CVE-2018-16843: libnginx-mod-http-auth-pam: nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excess... CVE-2018-16843 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-2018-16843 - Priority: Routine - CVSS: n/a (Medium) - EPSS: 0.4799 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Nov 5, 2018 ## Description nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive memory consumption. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file. ## 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 | --- Data as of 2026-11-07T18:46:35Z UTC. 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