CVE-2023-37365 hnswlib Double Free vulnerability
A double free vulnerability in Hnswlib allows attackers to cause denial of service or potentially execute code via a large M argument.
- 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 CVE-2023-37365?
CVE-2023-37365 is a medium-severity memory corruption vulnerability in n/a, published on 30 Jun 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
Hnswlib 0.7.0 has a double free in init_index when the M argument is a large integer.
Weakness: CWE-415
Which versions are affected by CVE-2023-37365?
3 open source packages ship an affected version, including hnswlib. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
hnswlib PyPI | All versions | 0.8.0 |
hnswlib PyPI | All versions | 0.8.0 |
hnswlib PyPI | All versions | 0.8.0 |
Products include Hnswlib Project Hnswlib.
How do I fix CVE-2023-37365?
Upgrade hnswlib to 0.8.0 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-37365 being exploited?
There is no known exploitation of CVE-2023-37365 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2023-37365, GHSA-xwc8-rf6m-xr86, PYSEC-2026-1450, UBUNTU-CVE-2023-37365.