GHSA-f9pm-4g9p-6vm3 Bundled libwebp in pywebp vulnerable
A heap buffer overflow in the bundled libwebp allows remote attackers to execute arbitrary code via malicious WebP images.
- 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-f9pm-4g9p-6vm3?
GHSA-f9pm-4g9p-6vm3 is a memory corruption vulnerability in webp, 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
pywebp versions before v0.3.0 bundled libwebp binaries in wheels that are vulnerable to CVE-2023-4863. The vulnerability was a heap buffer overflow which allowed a remote attacker to perform an out of bounds memory write.
Patches
The problem has been patched upstream in libwebp 1.3.2. pywebp was updated to bundle a patched version of libwebp in v0.3.0.
Workarounds
No known workarounds without upgrading.
References
Which versions are affected by GHSA-f9pm-4g9p-6vm3?
2 open source packages ship an affected version, including webp.
| Package | Affected | Fixed in |
|---|---|---|
webp PyPI | All versions | 0.3.0 |
webp PyPI | All versions | 0.3.0 |
How do I fix GHSA-f9pm-4g9p-6vm3?
Upgrade webp to 0.3.0 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GHSA-f9pm-4g9p-6vm3 being exploited?
There is no known exploitation of GHSA-f9pm-4g9p-6vm3 in the wild and no public exploit code.