#VU56239 Stack-based buffer overflow in hivex - CVE-2021-3622
Published: September 1, 2021
Vulnerability identifier: #VU56239
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-3622
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
hivex
hivex
Software vendor:
libguestfs
libguestfs
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing hive child objects. A local user can create a specially crafted Windows Registry (hive) file which would cause hivex to recursively call the _get_children() function, ultimately leading to a stack overflow and library crash.
Remediation
Install updates from vendor's website.