CVE-2021-3622 Information

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.

CVSS Vector

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

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1975489 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/USD4OEV6L3RPHE32V2MJ4JPFBODINWSU/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S35TVTAPHORSUIFYNFBHKLQRPVFUPXBE/ https://github.com/libguestfs/hivex/commit/771728218dac2fbf6997a7e53225e75a4c6b7255 https://listman.redhat.com/archives/libguestfs/2021-August/msg00002.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

LOW

Base Severity

4.3