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TI-2024-37351 Aliases CVE-2024-56433GHSA-7683-vm2j-m4cc

shadow-utils (aka shadow) 4.4 through 4.17.0 establishes a default /etc/subuid behavior…

Priority LOW 18CWE-1188Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Partial Red Hat: 9 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00426 37th percentileScored 2026-11-08
Fix Partial Red Hat: 11 advisoriesRed Hat: 9 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
shadow-maintshadow-utils4.4 – 4.17.0—No fix listedCNA
  • shadow-utils Vendorshadow-maint Affected 4.4 – 4.17.0 Fixed in — No fix listed CNA

Remediation

Red Hat 11 advisories

  • RHSA-2026:3462 Released 2026-02-27 · Red Hat rating Critical
    Red Hat AI Inference Server 3.2.2 (ROCm)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-rocm-rhel9
  • RHSA-2026:3461 Released 2026-02-27 · Red Hat rating Critical
    Red Hat AI Inference Server 3.2.2 (CUDA)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-cuda-rhel9
  • RHSA-2025:23080 Released 2025-12-10 · Red Hat rating Important
    Red Hat AI Inference Server Model Optimization Tools 3.2.2 (CUDA)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/model-opt-cuda-rhel9
Show 8 more Red Hat advisories
  • RHSA-2025:23079 Released 2025-12-10 · Red Hat rating Important
    Red Hat AI Inference Server 3.2.2 (ROCm)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-rocm-rhel9
  • RHSA-2025:23078 Released 2025-12-10 · Red Hat rating Important
    Red Hat AI Inference Server 3.2.2 (CUDA)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/vllm-cuda-rhel9
  • RHSA-2025:22868 Released 2025-12-08 · Red Hat rating Important
    Insights proxy Container Image
    • Red Hat Insights proxy 1.5 registry.redhat.io/insights-proxy/insights-proxy-container-rhel9
  • RHSA-2025:22548 Released 2025-12-02 · Red Hat rating Important
    Red Hat Ceph Storage
    • Red Hat Ceph Storage 8 registry.redhat.io/rhceph/rhceph-8-rhel9, registry.redhat.io/rhceph/rhceph-haproxy-rhel9
  • RHSA-2025:22529 Released 2025-12-01 · Red Hat rating Important
    Red Hat Ceph Storage
    • Red Hat Ceph Storage 7 registry.redhat.io/rhceph/rhceph-7-rhel9
  • RHSA-2025:21994 Released 2025-11-24 · Red Hat rating Important
    A Subscription Management tool for finding and reporting Red Hat product usage
    • Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9, registry.redhat.io/discovery/discovery-ui-rhel9
  • RHSA-2025:20559 Released 2025-11-11 · Red Hat rating Low
    shadow-utils security update
    • Red Hat Enterprise Linux BaseOS (v. 9) shadow-utils-2:4.9-15.el9, shadow-utils-subid-2:4.9-15.el9
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) shadow-utils-subid-devel-2:4.9-15.el9
  • RHSA-2025:20145 Released 2025-11-11 · Red Hat rating Low
    shadow-utils security update
    • Red Hat Enterprise Linux BaseOS (v. 10) shadow-utils-2:4.15.0-8.el10, shadow-utils-subid-2:4.15.0-8.el10
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) shadow-utils-subid-devel-2:4.15.0-8.el10

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat AI Inference Server 3.2Fixed RHSA-2025:23078, RHSA-2025:23079, RHSA-2025:23080, RHSA-2026:3461, RHSA-2026:3462
Red Hat Ceph Storage 7Fixed RHSA-2025:22529
Red Hat Ceph Storage 8Fixed RHSA-2025:22548
Red Hat Discovery 2Fixed RHSA-2025:21994
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:20145
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:20559
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:20145
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:20559
Red Hat Insights proxy 1.5Fixed RHSA-2025:22868
Not affected: 2 products
  • Red Hat Ceph Storage 7
  • Red Hat Ceph Storage 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-56433
  2. 2026-10-03 Alias added: GHSA-7683-vm2j-m4cc
  3. 2026-10-21 Affected versions changed · Red Hat
  4. 2026-10-22 Affected versions changed · Red Hat

References

Other 3

  • TI-2023-04278 Shadow-utils: possible password leak during passwd(1) change CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences