GHSA-4c29-gfrp-g6x9 CefSharp affected by libvpx's heap buffer overflow in vp8 encoding
Remote attackers can execute arbitrary code via heap corruption in libvpx when users visit crafted HTML pages using CefSharp.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is GHSA-4c29-gfrp-g6x9?
GHSA-4c29-gfrp-g6x9 is a memory corruption vulnerability in CefSharp.Common, published on 5 Oct 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Google is aware that an exploit for CVE-2023-5217 exists in the wild.
Description Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
References
Which versions are affected by GHSA-4c29-gfrp-g6x9?
4 open source packages ship an affected version, including CefSharp.Common and CefSharp.Common.NETCore.
| Package | Affected | Fixed in |
|---|---|---|
CefSharp.Common NuGet | All versions | 117.2.20 |
CefSharp.Common NuGet | All versions | 117.2.20 |
CefSharp.Common.NETCore NuGet | All versions | 117.2.20 |
CefSharp.Common.NETCore NuGet | All versions | 117.2.20 |
How do I fix GHSA-4c29-gfrp-g6x9?
Upgrade CefSharp.Common to 117.2.20 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GHSA-4c29-gfrp-g6x9 being exploited?
There is no known exploitation of GHSA-4c29-gfrp-g6x9 in the wild and no public exploit code.