GHSA-wqcr-xm43-hpqr Vulnerable version of libwebp and can be exploited with a malicious source image
Attackers can execute arbitrary code by tricking users into processing malicious WebP images with the unmaintained FreeImage library.
- 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
- None listed
What is GHSA-wqcr-xm43-hpqr?
GHSA-wqcr-xm43-hpqr is a memory corruption vulnerability in ImageResizer.Plugins.FreeImage, published on 6 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
Impact
This vulnerability affects deployments of FreeImage that involve decoding or processing malicious source .webp files. If you only process your own trusted files, this should not affect you, but you should remove FreeImage from your project, as it is not maintained and presents a massive security risk.
If you are using FreeImage via ImageResizer.Plugins.FreeImage, please utilize Imageflow or Imageflow.Server instead, or upgrade to ImageResizer 5 and use ImageResizer.Plugins.Imageflow (enable Prereleases on NuGet to access).
FreeImage relies on Google's libwebp library to decode .webp images, and is affected by the recent zero-day out-of-bounds write vulnerability CVE-2023-4863 and https://github.com/advisories/GHSA-j7hp-h8jx-5ppr. The libwebp vulnerability also affects Chrome, Android, macOS, and other consumers of the library).
libwebp patched the vulnerability and released 1.3.2. FreeImage hasn't been updated since then and is presumed vulnerable.
Patches
None. FreeImage has not been updated in several years.
Workarounds
If you are using ImageResizer.Plugins.FreeImage, please utilize Imageflow or Imageflow.Server instead, or upgrade to ImageResizer 5 and use ImageResizer.Plugins.Imageflow (enable Prereleases on NuGet to access).
References
https://github.com/advisories/GHSA-j7hp-h8jx-5ppr https://nvd.nist.gov/vuln/detail/CVE-2023-4863 https://github.com/webmproject/libwebp/commit/2af26267cdfcb63a88e5c74a85927a12d6ca1d76 https://github.com/NoXF/libwebp-sys/commits/master
Which versions are affected by GHSA-wqcr-xm43-hpqr?
2 open source packages ship an affected version, including ImageResizer.Plugins.FreeImage.
| Package | Affected | Fixed in |
|---|---|---|
ImageResizer.Plugins.FreeImage NuGet | All versions to 4.2.8 | None |
ImageResizer.Plugins.FreeImage NuGet | All versions to 4.2.8 | None |
How do I fix GHSA-wqcr-xm43-hpqr?
No fix has been published for GHSA-wqcr-xm43-hpqr yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GHSA-wqcr-xm43-hpqr being exploited?
There is no known exploitation of GHSA-wqcr-xm43-hpqr in the wild and no public exploit code.