PT-2021-7728 · Hdf5+3 · Hdf5+3

CVE-2021-37501 · Published 2021-07-22 · Updated 2026-03-29

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions HDF5 versions 1.12.0 through 1.13.0

Description The issue is related to a buffer overflow in the h5tools str sprint function, located in /hdf5/tools/lib/h5tools str.c, which can cause a denial of service. This can be exploited by a remote attacker.

Recommendations For versions 1.12.0 through 1.13.0, consider disabling the h5tools str sprint function as a temporary workaround until a patch is available. Restrict access to the h5dump tool to minimize the risk of exploitation.

Exploit

Fix

DoS

Memory Corruption

Heap Based Buffer Overflow

Weakness Enumeration

CWE-787

CWE-122

Related Identifiers

AZL-13349

AZL-34796

BDU:2023-02008

CVE-2021-37501

ECHO-7E9D-D6D6-80FC

OESA-2023-1325

OESA-2023-1326

OESA-2023-1327

OESA-2023-1328

OPENSUSE-SU-2024_3144-1

RHSA-2025:3801

SUSE-SU-2023:0691-1

SUSE-SU-2023:0777-1

SUSE-SU-2023:1563-1

SUSE-SU-2023_0691-1

SUSE-SU-2023_0777-1

SUSE-SU-2023_1563-1

SUSE-SU-2024:0538-1

SUSE-SU-2024:0882-1

SUSE-SU-2024:3144-1

Affected Products

Debian

Hdf5

Red Os

Suse

References · 73

• 🔥❌ https://github.com/ST4RF4LL/Something_Found/blob/main/HDF5_v1.13.0_h5dump_heap_overflow.md · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2018-13867 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2021-37501 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-14460 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:0882-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37501 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:3144-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-37501 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-37501 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-8396 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-37501 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-14033 · Security Note
• https://osv.dev/vulnerability/AZL-34796 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2023-1327 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:0538-1 · Vendor Advisory