Upstream information
Description
HDF5 through 2.2.0 contains a heap buffer over-read vulnerability in H5O__chunk_deserialize() in src/H5Ocache.c. When decoding object header messages, the declared message size is checked against the end of the chunk image before the remainder of the message header (flags, and for version 2 object headers, the optional creation index) has been decoded. Because the message body begins after these fields, a message can start up to four bytes further into the chunk than the size check accounts for. A crafted HDF5 file can declare a message size that passes the check but extends past the end of the chunk image, causing the message's decode callback, for example H5O__mtime_new_decode() in src/H5Omtime.c, to read beyond the heap allocation. The flaw is reachable during H5Fopen() on a crafted file. An attacker who can get a user or application to open a malicious file can cause a denial of service or limited disclosure of process memory.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | National Vulnerability Database | SUSE |
|---|---|---|
| Base Score | 6.1 | 6.1 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | Required | Required |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | Low | Low |
| Integrity Impact | None | None |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | CNA (0253b833-3e77-4dfe-9d57-17db1a2f0a74) | SUSE |
|---|---|---|
| Base Score | 1.9 | 6.8 |
| Vector | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Attack Requirements | None | None |
| Privileges Required | None | None |
| User Interaction | Passive | Active |
| Vulnerable System Confidentiality Impact | Low | Low |
| Vulnerable System Integrity Impact | None | None |
| Vulnerable System Availability Impact | Low | High |
| Subsequent System Confidentiality Impact | None | None |
| Subsequent System Integrity Impact | None | None |
| Subsequent System Availability Impact | None | None |
| CVSSv4 Version | 4.0 | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | hdf5 | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 12 SP5 | hdf5 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | hdf5 | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | hdf5 | Affected |
| SUSE Linux Enterprise Module for HPC 12 | hdf5 | Affected |
| SUSE Linux Enterprise Server 12 SP5 | hdf5 | Affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | hdf5 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | hdf5 | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise High Performance Computing 12 SP2 | hdf5 | Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP3 | hdf5 | Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP4 | hdf5 | Affected |
| SUSE Linux Enterprise Server 12 SP2 | hdf5 | Affected |
| SUSE Linux Enterprise Server 12 SP3 | hdf5 | Affected |
| SUSE Linux Enterprise Server 12 SP4 | hdf5 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | hdf5 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | hdf5 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | hdf5 | Affected |
SUSE Timeline for this CVE
CVE page created: Wed Nov 4 14:55:22 2026CVE page last modified: Wed Nov 4 17:54:47 2026