#VU26294 Heap-based buffer overflow in HDF5 - CVE-2020-10809

Vulnerability identifier: #VU26294

Vulnerability risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-10809

CWE-ID: CWE-122

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 within the Decompress() function in decompress.c. A remote attacker can exploit the vulnerability by sending a crafted file to the gif2h5 binary, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

HDF5: 1.0.0 - 1.0.1, 1.2.0 - 1.2.2, 1.3.0 - 1.3.1, 1.4.0 - 1.4.5, 1.6.0 - 1.6.10, 1.8.0 - 1.8.21, 1.10.0 - 1.10.6, 1.12.0

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External links
https://bitbucket.hdfgroup.org/projects/HDFFV/repos/hdf5/browse/release_docs/RELEASE.txt
https://github.com/Loginsoft-Research/hdf5-reports/tree/master/Vuln_1
https://research.loginsoft.com/bugs/heap-overflow-in-decompress-c-hdf5-1-13-0/

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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.