OSV-2023-337 Heap-buffer-overflow in PyBytes_FromStringAndSize
A heap-buffer-overflow in PyBytes_FromStringAndSize can lead to crashes or potential code execution in applications using the affected Python library.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is OSV-2023-337?
OSV-2023-337 is a memory corruption vulnerability in python3-libraries, published on 22 Apr 2023.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58225
Crash type: Heap-buffer-overflow READ {*}
Crash state:
PyBytes_FromStringAndSize
do_mkvalue
va_build_stack
Which versions are affected by OSV-2023-337?
1 open source package ship an affected version, including python3-libraries.
| Package | Affected | Fixed in |
|---|---|---|
python3-libraries OSS-Fuzz | All versions | None |
How do I fix OSV-2023-337?
No fix has been published for OSV-2023-337 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 OSV-2023-337 being exploited?
There is no known exploitation of OSV-2023-337 in the wild and no public exploit code.