Vulnerability · Published Jul 20, 2021 · Assigned by mitre

CVE-2021-36977

Medium 6.5

In plain English

A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS NVD)6.5Medium

Exploit odds (30 days)1.5%top 25.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2021-440.yaml x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31265 x_refsource_MISC
https://github.com/google/oss-fuzz-vulns/commit/37b781ace1b4228fc36483bb7e30c72ea9d4c3d6 x_refsource_MISC
https://github.com/HDFGroup/hdf5/issues/272 x_refsource_MISC
https://github.com/google/oss-fuzz/issues/4999 x_refsource_MISC