This critical security flaw was discovered in the implementation of certain extensions to the H.264 and H.265 video coding formats. We remind our readers that the H.265 codec is widely used in the streaming and streaming media industry. This flaw was found in the H.264 and H.265 video formats, which are used widely in video streaming applications. This could allow an attacker to cause a crash and/or run arbitrary code on a targeted device.
This vulnerability can be exploited by malicious attackers to create a special malicious H.265/H.264 video file that causes a crash on a targeted device.
Hackers can upload a specially-crafted H.265/H.264 video file to a streaming media server and then make that server ‘automatically download’ such a video file by using a third-party streaming media application. To make this attack succeed, a hacker has to trick a user into opening the specially-crafted file. For example, a hacker can send the specially-crafted H.265/H.264 video file to a user via the following methods:
· Spam email attachments;
· In-content social media posts;
· In-content ads in web browsers;
· In-content messages sent via instant messaging applications.
Vulnerability detection
A vulnerability detection system should detect this vulnerability as soon as possible.
How to Detect and Block H.265/H.264 Video Files
How to Detect and Block H.265/H.264 Video Files
First, you should know if your network or server is vulnerable to the attack. To detect whether your network or server is vulnerable, you can use a free online tool (at https://www.vulnerability-lab.com/results/h265-and-h264-video-codecs/). The test will tell if your system is vulnerable to CVE-2022-24532 and determine what kind of protection you need in order to protect yourself from attacks like this one.
If your system is vulnerable, you can download a security update from http://www.cisco.com/c/en/us/products/security/ios-xr-255785.html. If your device does not support an update for this vulnerability, it could be a good idea for you to disable all H.265 video decoding on your device:
· In iOS: Settings app > General > Restrictions > Enable Restriction > Allow H265 Decoding Only When Secure
· In Android: Settings app > Developer options > Hardware acceleration
· In Windows: Control panel > Hardware and Sound > Display settings
Why Disable All H.265 Video Decoding? Disabling all video decoding, including the option to decode videos in the H.264 and HAVC formats will avoid any potential future security flaws that may be discovered with the use of HAVC and
The Basics of H.265/H.264 Video Formats
The H.264 and H.265 video coding formats are widely used in streaming and streaming media applications, such as on video streaming services like YouTube and Netflix, or in the following applications:
· Media players;
· Streaming media applications;
· Video cameras;
· Web browsers (for example, the HTML5
Timeline
Published on: 04/15/2022 19:15:00 UTC
Last modified on: 04/19/2022 17:15:00 UTC