Vulnerability · Published Jan 12, 2024 · Assigned by GitHub_M
CVE-2024-21639OOB Access in CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory
Medium 5.3
In plain English
A medium-severity out-of-bounds read in cef from chromiumembedded. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.7%top 46.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| chromiumembedded | cef | < commit 1f55d2e |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H