CVE-2018-17439: hdfgroup hdf5 Out-of-bounds Write
Vulnerability summary
CVE-2018-17439 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in hdfgroup hdf5. EPSS estimates a 1.28% chance of exploitation in the next 30 days, higher than 70% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 6Timeline
- 24-09-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in the HDF HDF5 1.10.3 library. There is a stack-based buffer overflow in the function H5S_extent_get_dims() in H5S.c. Specifically, this issue occurs while converting an HDF5 file to a GIF file.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.28%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.28% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundCovering360
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- hdf5All versions (No fix recorded) | < 1.14.5+repack-1
Hdfgroup1 product
- hdf51.10.3
Ubuntu1 product
- hdf5All versions (No fix recorded)
3 vendors · 3 products
References
4 links- github.com/SegfaultMasters/covering360/tree/master/HDF5/vuln5X Refsource MISCExploitPatchThird Party AdvisoryREPORT
