NGINX Plus ngx_http_hls_module Local Memory Corrupt via Crafted HLS
CVE-2022-41743 Published on October 19, 2022
NGINX ngx_http_hls_module vulnerability CVE-2022-41743
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.
Vulnerability Analysis
CVE-2022-41743 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2022-41743 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2022-41743
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Affected Versions
F5 NGINX Plus:- Version R27 and below R27-p1 is affected.
- Version R1 and below R26-p1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.