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Published: 18 November 2016

When decoding data out of a dataset encoded with the H5Z_NBIT decoding, the HDF5 1.8.16 library will fail to ensure that the precision is within the bounds of the size leading to arbitrary code execution.

From the Ubuntu Security Team

It was discovered that HDF5 incorrectly handled decoding of data. An attacker could possibly use this issue to execute arbitrary code.



Cvss 3 Severity Score


Score breakdown


Package Release Status
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
precise Ignored
(end of life)
Released (1.8.11-5ubuntu7.1)
Released (1.8.18)
Released (1.8.16+docs-4ubuntu1.1)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 8.6
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H