![]() Clément Lecigne, a security researcher at Google’s Threat Analysis Group, found the flaw on September 25, leading to a patch on September 27. The exploit is being tracked by Google as CVE-2023-5217. SEE: Attackers built a fake Bitwarden password manager site to deliver malware targeting Windows (TechRepublic) “Specific handling of an attacker-controlled VP8 media stream could lead to a heap buffer overflow in the content process,” the Firefox team wrote in their security advisory.įrom there, the vulnerability “allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page,” said the official Common Vulnerabilities and Exposures site. It is widely used to encode or decode videos in the VP8 and VP9 video coding formats. The zero-day exploit is technically a heap buffer overflow in VP8 encoding in libvpx, which is a video code library developed by Google and the Alliance for Open Media. This zero-day vulnerability originates in libvpx library What can IT teams do to keep employees’ devices secure?.This zero-day vulnerability originates in libvpx library.In Firefox, the exploit is patched in Firefox 118.0.1, Firefox ESR 115.3.1, Firefox Focus for Android 118.1 and Firefox for Android 118.1. If you use Chrome, update to 1.132 when it becomes available Google Chrome says it may take “days/weeks” for all users to see the update. Any software that uses VP8 encoding in libvpx or is based on Chromium (including Microsoft Edge) might be affected, not just Chrome or Firefox. The zero-day exploit could leave users open to a heap buffer overflow, through which attackers could inject malicious code. The zero-day exploit was being used by a commercial spyware vendor. Google and Mozilla have patched a zero-day exploit in Chrome and Firefox, respectively. Google and Mozilla have patched the zero-day vulnerability, which originates in the libvpx library. Run an import process to import the scan results.Video Encoding Library Leaves Chrome, Firefox and More Open to Zero-Day Attack.Ensure the Upload Software Scan Result fixlet is running.Make sure that the catalog was propagated to the endpoints (automatically created action for propagation the endpoint executed on all applicable endpoints). ![]() Import the file with the custom signature.Go to Management -> Catalog Customization.Download the signature file from URL provided under every type of discovery described.Process how to import custom signatures is presented below: You can suppress detection from non-custom signatures, but in such situation, you will lose information about usage. Discovered software with component version 0.any_version, but correct component detailed version is software detected by custom signatures. Discovered software that has “standard” component version is detected by signatures that already exist in BFI. The third limitation is that those custom signatures don’t offer usage information.Īs you can see on the screenshot below detection is doubled. The second limitation is that there will be a duplicated discovery shown (due to an already existing discovery in the official catalog that doesn’t distinguish between normal and extended support release). There are a couple of limitations, the first would be the inability to report installed version in the “Component Version” thus it is reported as 0.any_version and the properly installed version is shown in “Component Detailed Version”. We have created 2 CIT custom signatures that provide this functionality. In this article, we would like to present solution for distinguishing between two release types of Firefox: Firefox and Firefox Extended Support Release (ESR) on Windows platform.
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