CVE-2021-39432 diplib Double Free
A double free vulnerability in diplib allows attackers to cause denial of service or potentially execute arbitrary code.
- 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-2021-39432?
CVE-2021-39432 is a medium-severity use after free vulnerability in n/a, published on 4 Nov 2022. 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
diplib v3.0.0 is vulnerable to Double Free.
Which versions are affected by CVE-2021-39432?
2 open source packages ship an affected version, including diplib. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
diplib PyPI | All versions | 3.1.0 |
diplib PyPI | All versions | 3.1.0 |
Products include Diplib Diplib.
How do I fix CVE-2021-39432?
Upgrade diplib to 3.1.0 or later.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-39432 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-39432 exists.
Sources
Also known as GHSA-xf2w-5673-h6ww.