Medium [CVE-2026-17572] Denial of Service via crafted file requiring user interaction
This medium-severity Red Hat Linux advisory covers CVE-2026-17572 affecting Red Hat Hardened Images, Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3.
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Summary
Heap-based buffer overflow in the SOHM list-index deserialization code in HDF5 through 2.1.1 on all platforms allows attackers to cause a denial of service (crash) via a crafted HDF5 file whose shared-message list index declares a num_messages count exceeding list_max, triggering out-of-bounds heap reads and writes in H5SM__cache_list_deserialize and H5SM__cache_list_verify_chksum.
A flaw was found in HDF5, a data management library. The malformed file can trigger out-of-bounds memory operations, leading to application crashes or instability.
This Moderate impact vulnerability in HDF5 requires user interaction to process a specially crafted HDF5 file, limiting the attack vector to local scenarios. Successful exploitation can lead to a denial of service.
The HDF5 library is used in Red Hat Enterprise Linux AI, Red Hat AI Inference Server, and Red Hat OpenShift AI. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).
Weakness: CWE-787. Affected Red Hat products: Red Hat Hardened Images; Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
Red Hat fixing advisory: RHSA-2026:61630.
- 2.1.1
Official advisory · high-confidence parse· fetched 27 days ago·verify at source
- hdf5-main-2.2.0-0.1.1.hum1
- RHSA-2026:61630
Official advisory · high-confidence parse· fetched 27 days ago·verify at source
Mitigation
Upgrade to a fixed release: hdf5-main-2.2.0-0.1.1.hum1, RHSA-2026:61630. That is the remediation for this advisory.
The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.
Official advisory · high-confidence parse· fetched 27 days ago·verify at source
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