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CVE-2018-16844

Status Candidate

Overview

nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive CPU usage. 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.

Related Files

Apple Security Advisory 2021-09-20-4
Posted Sep 22, 2021
Authored by Apple | Site apple.com

Apple Security Advisory 2021-09-20-4 - Xcode 13 addresses multiple issues in nginx.

tags | advisory
systems | apple
advisories | CVE-2016-0742, CVE-2016-0746, CVE-2016-0747, CVE-2017-7529, CVE-2018-16843, CVE-2018-16844, CVE-2018-16845, CVE-2019-20372
SHA-256 | e298f65735c01199cc9782cb84a35d40ade27a44f1619154f005170a70f23d97
Red Hat Security Advisory 2018-3681-01
Posted Nov 27, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3681-01 - nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage. Issues addressed include a denial of service vulnerability.

tags | advisory, web, denial of service, protocol
systems | linux, redhat
advisories | CVE-2018-16843, CVE-2018-16844, CVE-2018-16845
SHA-256 | edc156252a77c17ab32cdf45a40f9b72fed35d597c56732bf77fbcba569b8b86
Red Hat Security Advisory 2018-3680-01
Posted Nov 27, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3680-01 - nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage. Issues addressed include a denial of service vulnerability.

tags | advisory, web, denial of service, protocol
systems | linux, redhat
advisories | CVE-2018-16843, CVE-2018-16844, CVE-2018-16845
SHA-256 | bf762c567899406a051f2a94d0eb8fc6de8342ac0ca6d42ea5ecab607fcc1426
Debian Security Advisory 4335-1
Posted Nov 12, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4335-1 - Three vulnerabilities were discovered in Nginx, a high-performance web and reverse proxy server, which could in denial of service in processing HTTP/2 (via excessive memory/CPU usage) or server memory disclosure in the ngx_http_mp4_module module (used for server-side MP4 streaming).

tags | advisory, web, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2018-16843, CVE-2018-16844, CVE-2018-16845
SHA-256 | 62738a0f3a1924f58af8ca8de7f560fafc42ea8de43136a5a020522b764a4454
Ubuntu Security Notice USN-3812-1
Posted Nov 7, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3812-1 - It was discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause excessive memory consumption, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. Gal Goldshtein discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause excessive CPU usage, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. Various other issues were also addressed.

tags | advisory, remote, web, denial of service
systems | linux, ubuntu
advisories | CVE-2018-16843, CVE-2018-16844, CVE-2018-16845
SHA-256 | de51d5f5527e718cfd03e2b97d884775074a77a2c8b330508d29034ee83361c4
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