HTACG HTML Tidy 5.7.28 gdoc.c CleanNode -g use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in HTACG HTML Tidy 5.7.28. Impacted is the function CleanNode of the file gdoc.c. The manipulation of the argument -g leads to an unknown weakness. This vulnerability is referenced as CVE-2021-33391. No exploit is available.

Detailsinfo

A vulnerability was found in HTACG HTML Tidy 5.7.28. It has been rated as critical. This issue affects the function CleanNode of the file gdoc.c. The manipulation of the argument -g with an unknown input leads to a unknown weakness. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue in HTACG HTML Tidy v5.7.28 allows attacker to execute arbitrary code via the -g option of the CleanNode() function in gdoc.c.

The weakness was published 02/18/2023 as 946. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-33391 since 05/20/2021. 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

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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

05/20/2021 🔍
02/18/2023 +639 days 🔍
02/18/2023 +0 days 🔍
03/18/2023 +28 days 🔍

Sourcesinfo

Advisory: 946
Status: Confirmed

CVE: CVE-2021-33391 (🔍)
GCVE (CVE): GCVE-0-2021-33391
GCVE (VulDB): GCVE-100-221435

Entryinfo

Created: 02/18/2023 08:21
Updated: 03/18/2023 18:42
Changes: 02/18/2023 08:21 (39), 03/18/2023 18:42 (12)
Complete: 🔍
Cache ID: 216::103

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

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