VTK libxml2 API vtkXMLTreeReader.cxx xmlDocGetRootElement resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in VTK. Impacted is the function xmlDocGetRootElement of the file IO/Infovis/vtkXMLTreeReader.cxx of the component libxml2 API. This manipulation causes resource consumption. This vulnerability is registered as CVE-2021-42521. No exploit is available.

Detailsinfo

A vulnerability has been found in VTK (affected version unknown) and classified as problematic. Affected by this vulnerability is the function xmlDocGetRootElement of the file IO/Infovis/vtkXMLTreeReader.cxx of the component libxml2 API. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

There is a NULL pointer dereference vulnerability in VTK, and it lies in IO/Infovis/vtkXMLTreeReader.cxx. The vendor didn't check the return value of libxml2 API 'xmlDocGetRootElement', and try to dereference it. It is unsafe as the return value can be NULL and that NULL pointer dereference may crash the application.

The weakness was published 08/26/2022 as 17818. It is possible to read the advisory at gitlab.kitware.com. This vulnerability is known as CVE-2021-42521 since 10/15/2021. Technical details of the vulnerability are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/15/2021 🔍
08/26/2022 +315 days 🔍
08/26/2022 +0 days 🔍
10/02/2022 +37 days 🔍

Sourcesinfo

Advisory: 17818
Status: Not defined

CVE: CVE-2021-42521 (🔍)
GCVE (CVE): GCVE-0-2021-42521
GCVE (VulDB): GCVE-100-207355

Entryinfo

Created: 08/26/2022 09:50
Updated: 10/02/2022 09:38
Changes: 08/26/2022 09:50 (39), 10/02/2022 09:38 (11)
Complete: 🔍
Cache ID: 216::103

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