Untrusted Pointer Dereference in HDF5 - CVE-2021-46243
Published: November 2, 2022
Vulnerability identifier: #VU68909
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-46243
CWE-ID: CWE-822
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to untrusted pointer dereference error within the H5O__dtype_decode_helper() function in hdf5/src/H5Odtype.c. A remote attacker can pass specially crafted data to the application, trigger a pointer dereference and perform a denial of service (DoS) attack.
Affected software
HDF5
How to mitigate CVE-2021-46243
Install update from vendor's website.
HDF5 - addressed in versions 1.10.9, 1.12.2, 1.13.2