CVE-2024-21639 MEDIUM

CVE-2024-21639: OOB Access in CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory

Vendor Chromiumembedded
Product cef
Weakness CWE-125
Published January 12, 2024
Last update August 1, 2024

CVSS base score

5.3/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 12, 2024 CVE published
August 1, 2024 Record updated