Vulnerability identifier: #VU68911

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-45833

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
HDF5
Universal components / Libraries / Libraries used by multiple products

Vendor: HDF Group

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in within the H5D__create_chunk_file_map_hyper() function in /hdf5/src/H5Dchunk.c. A remote attacker can send specially crafted data to the application, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

HDF5: 1.13.0 - 1.13.1-1, 1.12.0 - 1.12.1, 1.10.0 - 1.10.8

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External links
http://github.com/HDFGroup/hdf5/issues/1313

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.