Hivex Windows Registry File _get_children stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Hivex. It has been classified as critical. Affected by this issue is the function _get_children of the component Windows Registry File Handler. The manipulation leads to stack-based overflow. This vulnerability is uniquely identified as CVE-2021-3622. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Hivex (unknown version). This issue affects the function _get_children of the component Windows Registry File Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability.

The weakness was disclosed 12/24/2021 as 771728218dac2fbf6997a7e53225e75a4c6b7255. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-3622 since 06/25/2021. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 299967 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2026-50118)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 771728218dac2fbf6997a7e53225e75a4c6b7255 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (299967). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 299967
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2026-50118)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 771728218dac2fbf6997a7e53225e75a4c6b7255

Timelineinfo

06/25/2021 🔍
12/24/2021 +182 days 🔍
12/24/2021 +0 days 🔍
02/28/2026 +1527 days 🔍

Sourcesinfo

Advisory: 771728218dac2fbf6997a7e53225e75a4c6b7255
Status: Confirmed

CVE: CVE-2021-3622 (🔍)
GCVE (CVE): GCVE-0-2021-3622
GCVE (VulDB): GCVE-100-189047

Entryinfo

Created: 12/24/2021 08:23
Updated: 02/28/2026 23:51
Changes: 12/24/2021 08:23 (40), 12/27/2021 08:39 (1), 02/28/2026 23:51 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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