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Echo: hdf5: security update to 1.14.5+repack-3+e19

medium Tenable Cloud Security Plugin ID 478408

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - HDF5 through 2.2.0 contains a heap buffer over-read vulnerability in H5L__extern_traverse() in
 src/H5Lexternal.c, the default traversal callback for external links. The callback locates the target file
 name and object path within the link’s user data using strlen() without validating the buffer against its
 stored size (udata_size, which was marked unused). A crafted HDF5 file containing an external link whose
 data is not NULL-terminated, or is too short to hold both strings, causes strlen() to read past the end of
 the udata heap buffer, and the derived object path pointer may also point outside the buffer. The overrun
 is unbounded and continues until a zero byte is found. The flaw is triggered when the malicious link is
 traversed, for example when opening an object through it. An attacker who can get a user or application to
 access a crafted file can cause a denial of service, and adjacent heap contents may be incorporated into
 the external file name or object path the library attempts to open. (CVE-2026-120757)

Solution

Update the hdf5 library and its related packages to version 1.14.5+repack-3+e19 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-120757

Plugin Details

Severity: Medium

ID: 478408

Version: Revision 1.1

Type: Local

Published: 11/5/2026

Updated: 11/5/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Percentile: 96.11

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:C

CVSS Score Source: CVE-2026-120757

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 4.4

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/5/2026

Vulnerability Publication Date: 11/3/2026

Reference Information

CVE: CVE-2026-120757