Medium severity6.5NVD Advisory· Published Jul 20, 2021· Updated Jun 17, 2026
CVE-2021-36977
CVE-2021-36977
Description
matio (aka MAT File I/O Library) 1.5.20 and 1.5.21 has a heap-based buffer overflow in H5MM_memcpy (called from H5MM_malloc and H5C_load_entry), related to use of HDF5 1.12.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6cpe:2.3:a:matio_project:matio:1.5.20:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:matio_project:matio:1.5.20:*:*:*:*:*:*:*
- cpe:2.3:a:matio_project:matio:1.5.21:*:*:*:*:*:*:*
- matio/MAT File I/O Librarydescription
- osv-coords2 versionspkg:rpm/opensuse/matio&distro=openSUSE%20Leap%2015.4pkg:rpm/suse/matio&distro=SUSE%20Package%20Hub%2015%20SP4
< 1.5.23-bp154.2.3.1+ 1 more
- (no CPE)range: < 1.5.23-bp154.2.3.1
- (no CPE)range: < 1.5.23-bp154.2.3.1
Patches
Vulnerability mechanics
References
5- bugs.chromium.org/p/oss-fuzz/issues/detailnvdPatchThird Party Advisory
- github.com/google/oss-fuzz-vulns/commit/37b781ace1b4228fc36483bb7e30c72ea9d4c3d6nvdIssue TrackingPatchThird Party Advisory
- github.com/HDFGroup/hdf5/issues/272nvdIssue TrackingThird Party Advisory
- github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2021-440.yamlnvdThird Party Advisory
- github.com/google/oss-fuzz/issues/4999nvdIssue TrackingThird Party Advisory
News mentions
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