CVE-2021-46244 Denial of service in n/a
A divide-by-zero error in the HDF5 library allows attackers to cause a denial of service via arithmetic exception.
- 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-2021-46244?
CVE-2021-46244 is a medium-severity denial of service vulnerability in Hdfgroup Hdf5, published on 21 Jan 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
A Divide By Zero vulnerability exists in HDF5 v1.13.1-1 vis the function H5T__complete_copy () at /hdf5/src/H5T.c. This vulnerability causes an aritmetic exception, leading to a Denial of Service (DoS).
Weakness: CWE-369
Which versions are affected by CVE-2021-46244?
It affects 1 product.
Products include Hdfgroup Hdf5.
How do I fix CVE-2021-46244?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-46244 being exploited?
There is no known exploitation of CVE-2021-46244 in the wild and no public exploit code.
Other vulnerabilities in Hdfgroup Hdf5
Sources
Also known as DEBIAN-CVE-2021-46244, ECHO-5154-01b2-8c42, GHSA-vrxh-5gxg-rmhm, UBUNTU-CVE-2021-46244.