Description
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_core_module module. When asynchronous file I/O (AIO) is enabled in certain configurations, processing a Server Side Includes (SSI) page containing “include virtual” commands may trigger a Use-After-Free (UAF) in the NGINX worker process. This may cause memory corruption or a worker process crash. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system, corrupt its memory, or possibly trigger code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS breakdown
Affected products
- F5 / NGINX Open Source1.31.0 – 1.31.7
- F5 / NGINX Open Source1.30.0 – 1.30.6
- F5 / NGINX PlusR36 – *
- F5 / NGINX PlusR35 – *
- F5 / NGINX Plus37.1.0 – 37.1.0.1
- F5 / NGINX PlusR33 – *
- F5 / NGINX PlusR34 – *
- F5 / NGINX Plus37.0.0 – 37.0.5.1