CVE-2022-41743 NGINX ngx_http_hls_module vulnerability CVE-2022-41743
A local attacker can corrupt NGINX worker memory via crafted media files, causing crashes or potential code execution in NGINX Plus with HLS enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-41743?
CVE-2022-41743 is a high-severity memory corruption vulnerability in F5 NGINX Plus, published on 19 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-787
Which versions are affected by CVE-2022-41743?
1 open source package ship an affected version, including nginx-ingress-controller. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
nginx-ingress-controller Bitnami | From 1.9.0 | 1.12.4, 2.4.0 |
Products include F5 Nginx Ingress Controller, F5 Nginx Plus.
How do I fix CVE-2022-41743?
Upgrade nginx-ingress-controller to a fixed version for your release line: 1.12.4 or 2.4.0.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-41743 being exploited?
There is no known exploitation of CVE-2022-41743 in the wild and no public exploit code.
Other vulnerabilities in F5 NGINX Plus
Sources
Also known as BIT-nginx-ingress-controller-2022-41743, GHSA-g286-fgpf-9wp8.