htmldoc up to 1.9.12 image.cxx image_load_jpeg null pointer dereference

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 htmldoc up to 1.9.12. It has been classified as problematic. This impacts the function image_load_jpeg of the file image.cxx. Performing a manipulation results in null pointer dereference. This vulnerability is known as CVE-2021-23191. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as problematic, was found in htmldoc up to 1.9.12. This affects the function image_load_jpeg of the file image.cxx. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was published 03/03/2022 as 415. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2021-23191 since 04/06/2021. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 213544 (Ubuntu 14.04 LTS / 18.04 LTS / 20.04 LTS : HTMLDOC vulnerabilities (USN-7189-1)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 369b2ea1fd0d0537ba707f20a2f047b6afd2fbdc 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 (213544). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

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

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 213544
Nessus Name: Ubuntu 14.04 LTS / 18.04 LTS / 20.04 LTS : HTMLDOC vulnerabilities (USN-7189-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 369b2ea1fd0d0537ba707f20a2f047b6afd2fbdc

Timelineinfo

04/06/2021 🔍
03/03/2022 +331 days 🔍
03/03/2022 +0 days 🔍
01/08/2025 +1042 days 🔍

Sourcesinfo

Advisory: 415
Status: Confirmed

CVE: CVE-2021-23191 (🔍)
GCVE (CVE): GCVE-0-2021-23191
GCVE (VulDB): GCVE-100-194115

Entryinfo

Created: 03/03/2022 08:31
Updated: 01/08/2025 12:32
Changes: 03/03/2022 08:31 (41), 03/04/2022 18:51 (1), 01/08/2025 12:32 (16)
Complete: 🔍
Cache ID: 216::103

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

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