CVE-2024-21639: chromium embedded — Exploit

Description

CEF (Chromium Embedded Framework ) is a simple framework for embedding Chromium-based browsers in other applications. `CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory` does not check the size of the shared memory, which leads to out-of-bounds read outside the sandbox. This vulnerability was patched in commit 1f55d2e.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
chromiumembedded	chromium_embedded_framework	< 2024-01-05

References

Advisories & Patches

https://github.com/chromiumembedded/cef/commit/1f55d2e12f62cfdfbf9da6968fde2f928982670b https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mg https://github.com/chromiumembedded/cef/commit/1f55d2e12f62cfdfbf9da6968fde2f928982670b https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mg

Exploits

https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mg https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mg

Frequently Asked Questions

What is CVE-2024-21639? +

CEF (Chromium Embedded Framework ) is a simple framework for embedding Chromium-based browsers in other applications. `CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory` does not check the size of the shared memory, which leads to out-of-bounds read outside the sandbox. This vulnerability was patched in commit 1f55d2e. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-21639? +

CVE-2024-21639 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-21639? +

CVE-2024-21639 affects products from chromiumembedded, specifically: chromium_embedded_framework. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-21639? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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