Fedora 42 users must update Chromium immediately to patch CVE-2025-4372, a critical Use After Free vulnerability in WebAudio. Learn how to secure your system and prevent exploits with this high-priority security fix.
Key Security Fix: Chromium 136.0.7103.92 Addresses High-Risk "Use After Free" Exploit
Fedora 42 users must urgently update Chromium to version 136.0.7103.92 to mitigate CVE-2025-4372, a severe Use After Free (UAF) vulnerability in WebAudio. This flaw could allow attackers to execute arbitrary code via malicious web content, posing significant security risks.
🔹 Why This Update Matters:
Critical Severity (CVSS: High) – Exploitable via crafted audio web content.
Widespread Impact – Affects all Fedora users running Chromium.
Zero-Day Potential – Active exploitation in the wild is possible.
Update Instructions for Fedora 42
To apply this security patch immediately, run:
sudo dnf upgrade --advisory FEDORA-2025-63db6c850fFor detailed guidance, consult the official DNF documentation.
In-Depth Analysis of CVE-2025-4372
What Is a "Use After Free" Vulnerability?
A Use After Free (UAF) flaw occurs when a program continues to access memory after it has been freed, potentially allowing attackers to manipulate data structures and execute malicious code.
Why WebAudio Is a Prime Target:
WebAudio processes real-time audio streams, making it susceptible to memory corruption.
Malicious websites can exploit this to hijack browser sessions or install malware.
How to Verify the Update Worked
After upgrading, check your Chromium version:
chromium --versionEnsure it displays 136.0.7103.92 or higher.
Additional Security Best Practices
✅ Enable Automatic Updates – Reduce exposure to zero-day threats.
✅ Use a Secure Browser Profile – Isolate high-risk browsing activities.
✅ Monitor LinuxSecurity Advisories – Stay ahead of emerging threats.
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