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Google has released Chrome 137.0.7151.55 for Linux and 137.0.7151.55/56 for Windows and Mac, addressing 11 critical vulnerabilities, including CVE-2025-5063, a use-after-free flaw that could lead to remote code execution. This update is crucial for preventing exploits targeting unpatched systems.
You Should Know:
1. Verify Chrome Version
Ensure your Chrome is updated:
Linux (Debian/Ubuntu) sudo apt update && sudo apt upgrade google-chrome-stable -y Windows (Command Prompt) wmic product where "name like 'Google Chrome'" get version Mac (Terminal) /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --version
2. Check for CVE-2025-5063 Exploits
Use GDB (Linux) to detect memory corruption attempts:
gdb -p $(pgrep chrome) --eval-command="watch (void)0x[bash]"
3. Mitigation Commands
Disable vulnerable extensions temporarily:
Linux/Mac chrome://extensions → Toggle off suspicious plugins Windows (PowerShell) Get-ChildItem "C:\Users\$env:USERNAME\AppData\Local\Google\Chrome\User Data\Default\Extensions" | Remove-Item -Force
4. Sandbox Hardening
Strengthen Chrome’s sandbox on Linux:
sudo sysctl -w kernel.unprivileged_userns_clone=0
5. Log Analysis
Check Chrome crash logs for exploit attempts:
Linux
grep "segfault" /var/log/syslog
Windows
Get-EventLog -LogName Application -Source "Chrome" | Where-Object { $_.Message -like "access violation" }
6. Emergency Patch Rollback (If Needed)
Revert to a previous version (Linux):
sudo apt install google-chrome-stable=136.0.6944.44-1
What Undercode Say
This update underscores the importance of zero-day patching. Attackers increasingly target browser memory flaws (e.g., use-after-free) for RCE. Always:
– Monitor CVE databases (e.g., cve.mitre.org).
– Use Linux hardening (grsecurity, PaX).
– Automate updates via cron:
Linux (Daily update check) 0 3 sudo apt update && sudo apt upgrade -y
Expected Output:
[/bash]
Google Chrome 137.0.7151.55 (Official Build) (64-bit)
No segfaults detected in syslog.
[bash]
Prediction
Browser-based exploits will rise, with AI-driven fuzzing accelerating vulnerability discovery. Expect more Chrome zero-days in 2025.
URLs:
– Chrome Releases Blog
– CVE-2025-5063 Details
IT/Security Reporter URL:
Reported By: Vasileiadis Anastasios – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
