Insecure Default Initialization of Resource Affecting shadow-utils-subid package, versions <2:4.9-15.el9


Severity

Recommended
0.0
low
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.43% (35th percentile)

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  • Snyk IDSNYK-RHEL9-SHADOWUTILSSUBID-13877040
  • published11 Nov 2025
  • disclosed26 Dec 2024

Introduced: 26 Dec 2024

CVE-2024-56433  (opens in a new tab)
CWE-1188  (opens in a new tab)

How to fix?

Upgrade RHEL:9 shadow-utils-subid to version 2:4.9-15.el9 or higher.
This issue was patched in RHSA-2025:20559.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow-utils-subid package and not the shadow-utils-subid package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

shadow-utils (aka shadow) 4.4 through 4.17.0 establishes a default /etc/subuid behavior (e.g., uid 100000 through 165535 for the first user account) that can realistically conflict with the uids of users defined on locally administered networks, potentially leading to account takeover, e.g., by leveraging newuidmap for access to an NFS home directory (or same-host resources in the case of remote logins by these local network users). NOTE: it may also be argued that system administrators should not have assigned uids, within local networks, that are within the range that can occur in /etc/subuid.

CVSS Base Scores

version 3.1