OSV-2020-782 UNKNOWN READ in H5O_dtype_decode_helper
A memory corruption vulnerability in the HDF5 library allows attackers to cause a denial of service via crafted files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is OSV-2020-782?
OSV-2020-782 is a memory corruption vulnerability in matio, published on 14 Jul 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23320
Crash type: UNKNOWN READ
Crash state:
H5O_dtype_decode_helper
H5O_dtype_shared_decode
H5O_attr_shared_decode
Which versions are affected by OSV-2020-782?
1 open source package ship an affected version, including matio.
| Package | Affected | Fixed in |
|---|---|---|
matio OSS-Fuzz | All versions | None |
How do I fix OSV-2020-782?
No fix has been published for OSV-2020-782 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-2020-782 being exploited?
There is no known exploitation of OSV-2020-782 in the wild and no public exploit code.