CVE-2021-3622

medium

Description

A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Windows Registry (hive) file, which would cause hivex to recursively call the _get_children() function, leading to a stack overflow. The highest threat from this vulnerability is to system availability.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1975489

https://lists.fedoraproject.org/archives/list/[email protected]/message/USD4OEV6L3RPHE32V2MJ4JPFBODINWSU/

https://lists.fedoraproject.org/archives/list/[email protected]/message/S35TVTAPHORSUIFYNFBHKLQRPVFUPXBE/

https://github.com/libguestfs/hivex/commit/771728218dac2fbf6997a7e53225e75a4c6b7255

https://listman.redhat.com/archives/libguestfs/2021-August/msg00002.html

Details

Source: MITRE

Published: 2021-12-23

Updated: 2022-01-10

Type: CWE-400

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Impact Score: 1.4

Exploitability Score: 2.8

Severity: MEDIUM