CVE-2024-5830
📋 TL;DR
This vulnerability is a type confusion flaw in Chrome's V8 JavaScript engine that allows an attacker to write data outside the bounds of allocated memory. Attackers can exploit this by tricking users into visiting a malicious webpage, potentially leading to arbitrary code execution. All users running vulnerable versions of Chrome are affected.
💻 Affected Systems
- Google Chrome
- Chromium-based browsers
📦 What is this software?
Chrome by Google
Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...
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⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the privileges of the Chrome process, potentially leading to full system compromise, data theft, or ransomware deployment.
Likely Case
Browser crash (denial of service) or limited memory corruption that could be leveraged for information disclosure or further exploitation.
If Mitigated
No impact if Chrome is fully patched or if exploit attempts are blocked by web filtering or network segmentation.
🎯 Exploit Status
Exploitation requires user interaction (visiting a malicious page) but no authentication. Type confusion vulnerabilities in V8 have historically been exploited in the wild.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 126.0.6478.54 and later
Vendor Advisory: https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu > Help > About Google Chrome. 3. Chrome will automatically check for and apply the update. 4. Click 'Relaunch' to restart Chrome with the patched version.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents exploitation by blocking JavaScript execution, but breaks most website functionality.
Use Site Isolation
allEnables Chrome's Site Isolation feature to limit impact by isolating websites in separate processes (already enabled by default in recent versions).
🧯 If You Can't Patch
- Restrict access to untrusted websites using web filtering or proxy rules.
- Deploy application control to block Chrome execution or use alternative browsers temporarily.
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if it's below 126.0.6478.54, it's vulnerable.Check Version:
On Chrome: chrome://version/ or 'google-chrome --version' on Linux/macOS terminal.Verify Fix Applied:
Confirm Chrome version is 126.0.6478.54 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports, unexpected process termination logs, suspicious memory access errors in system logs.
Network Indicators:
- Requests to known malicious domains hosting exploit code, unusual outbound connections from Chrome processes.
SIEM Query:
source="chrome_logs" AND (event_type="crash" OR message="*V8*" OR message="*type confusion*")🔗 References
- https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop.html
- https://issues.chromium.org/issues/342456991
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7VXA32LXMNK3DSK3JBRLTBPFUH7LTODU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MPU7AB53QQVNTBPGRMJRY5SXJNYWW3FX/
- https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop.html
- https://issues.chromium.org/issues/342456991
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7VXA32LXMNK3DSK3JBRLTBPFUH7LTODU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MPU7AB53QQVNTBPGRMJRY5SXJNYWW3FX/
