We have released updates to NGINX Open Source, NGINX Plus, and NGINX Ingress Controller to fix a vulnerability in DNS resolution (CVE-2021-23017). We consider the vulnerability to be low-severity, but encourage users to upgrade to the latest versions.
An often-overlooked benefit of NGINX Plus is how it makes protecting yourself against security threats quick and easy. We proactively inform NGINX Plus subscribers of security vulnerabilities and patches, provide help during attacks, support JWT and OIDC authentication, and more.
On 14 September 2020 we released an update to the NGINX Plus ModSecurity module (for NGINX Plus R20, R21, and R22) in response to CVE-2020-15598. We encourage NGINX Plus subscribers to upgrade to the patched module.
We provide guidance on using NGINX to mitigate the recently discovered vulnerability in PHP-FPM (CVE-2019-11043). The vulnerability is triggered when the PATH_INFO variable passed to PHP-FPM with an invalid value, which can happen in a common NGINX configuration.
We have released updates to NGINX Open Source and NGINX Plus to fix vulnerabilities in the HTTP/2 protocol that were announced today (CVE-2019-9511, CVE-2019-9513, and CVE-2019-9516). Upgrade as soon as possible to NGINX 1.17.3, NGINX 1.16.1, or NGINX Plus R18 P1.
The Meltdown and Spectre vulnerabilities stem from commonly found security flaws in microprocessors. They require patches to most OSs.