Security readout for executives and security teams
Plain-English summary
CVE-2018-11202 is a crash bug in HDF5 1.10.2. If software processes a specially malformed HDF5 file, the library may dereference a NULL pointer and stop working. The documented impact is denial of service, not data theft or code execution.
Executive priority
Treat this as an availability risk for HDF5-processing systems. It is most urgent where external files can reach production parsers. Lack of CVSS and fix detail means teams should validate exposure before emergency action.
Technical view
The issue is a NULL pointer dereference in H5S_hyper_make_spans in H5Shyper.c within HDF5 1.10.2. Public CVE data describes potential remote denial of service. The source bundle does not provide CVSS, CWE, affected CPEs, or a named vendor fix.
Likely exposure
Exposure is most likely in services, pipelines, or desktop tools that use HDF5 1.10.2 and accept HDF5 files from users, partners, or automated feeds. Evidence for other affected versions is not provided.
Exploitation context
The CVE is not listed as KEV in the bundle, so active exploitation is not established. A public fuzzing PoC reference is listed, indicating the crash condition was publicly documented, but weaponized exploitation is not evidenced here.
Researcher notes
The provided record is sparse: no CVSS vector, CWE, CPE, or patch reference is included. Analysis should stay scoped to HDF5 1.10.2 unless additional vendor data confirms broader affected versions.
Mitigation direction
- Identify applications and containers using HDF5 1.10.2.
- Check HDF Group guidance for fixed versions or supported remediation.
- Prioritize systems that parse untrusted HDF5 files.
- Restrict or sandbox HDF5 parsing where upgrade timing is uncertain.
- Monitor affected services for parser crashes or availability degradation.
Validation and detection
- Inventory deployed HDF5 library versions across servers and build artifacts.
- Review file-ingestion paths for untrusted HDF5 input.
- Confirm vendor release notes or advisories before applying upgrades.
- Run safe regression tests to ensure malformed files do not crash parsing workflows.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-11202 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/Twi1ight/fuzzing-pocs/tree/master/hdf5CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.