CVE-2021-23191

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A security issue was found in htmldoc v1.9.12 and before. A NULL pointer dereference in the function image_load_jpeg() in image.cxx may result in denial of service.

Se encontró un problema de seguridad en htmldoc versiones v1.9.12 y anteriores. Una desreferencia de puntero NULL en la función image_load_jpeg() en el archivo image.cxx puede resultar en una denegación de servicio

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-06 CVE Reserved
2021-06-28 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-10-06 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (4)

URL	Tag	Source
https://ubuntu.com/security/CVE-2021-23191	Third Party Advisory

URL	Date	SRC
https://github.com/michaelrsweet/htmldoc/issues/415	2024-08-03

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1967022	2022-03-10
https://github.com/michaelrsweet/htmldoc/commit/369b2ea1fd0d0537ba707f20a2f047b6afd2fbdc	2022-03-10

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Htmldoc Project Search vendor "Htmldoc Project"		Htmldoc Search vendor "Htmldoc Project" for product "Htmldoc"				<= 1.9.12 Search vendor "Htmldoc Project" for product "Htmldoc" and version " <= 1.9.12"		-		Affected