Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
🔗 CVE IDs covered (3)
📋 Description
CVE-2025-14104 — util-linux: util-linux: Heap buffer overread in setpwnam() when processing 256-byte usernames CVE-2026-3184 — util-linux: util-linux: Access control bypass due to improper hostname canonicalization CVE-2026-27456 — util-linux: TOCTOU in the mount program when setting up loop devices
🎯 Affected products4
- Red Hat Hardened Images
- util-linux-main@aarch64 as a component of Red Hat Hardened Images
- util-linux-main@src as a component of Red Hat Hardened Images
- util-linux-main@x86_64 as a component of Red Hat Hardened Images
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: To mitigate this flaw, remove the 'user' option from any loop mounts in the /etc/fstab file or ensure the the source path points to a root-owned directory where unprivileged users do not have write permissions.
🔗 References (7)
- selfhttps://access.redhat.com/errata/RHSA-2026:7180
- externalhttps://images.redhat.com/
- externalhttps://access.redhat.com/security/cve/CVE-2026-27456
- externalhttps://access.redhat.com/security/updates/classification/
- externalhttps://access.redhat.com/security/cve/CVE-2025-14104
- externalhttps://access.redhat.com/security/cve/CVE-2026-3184
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_7180.json