K01112063 : NGINX ngx_http_hls_module vulnerability CVE-2022-41743

Security Advisory Description

NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_hls_module that might allow a local attacker to corrupt NGINX worker memory, resulting in its crash or potential other impact using a specially crafted audio or video file. The issue affects only NGINX Plus when the hls directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_hls_module. (CVE-2022-41743)

The ngx_http_hls_module module provides HTTP Live Streaming (HLS) server-side support for MP4 and MOV media files. Such files typically have the .mp4, .m4v, .m4a, .mov, or .qt filename extensions. The module supports H.264 video codec, AAC, and MP3 audio codecs. For more information about thengx_http_hls_module module, refer to the Module ngx_http_hls_module page.

Impact

A successful exploit may allow a local attacker to corrupt NGINX worker memory, resulting in its termination or potential other impact.

Note: The HLS module is not available for NGINX Open Source edition. The HLS module is included in NGINX Plus.