CVE-2021-40633

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file.

Una pérdida de memoria (out-of-memory) en gif2rgb en el archivo util/gif2rgb.c en giflib versión 5.1.4, permite a atacantes remotos desencadenar una excepción de fuera de memoria o una denegación de servicio por medio de un archivo con formato gif

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-07 CVE Reserved
2022-06-14 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-09-05 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://sourceforge.net/p/giflib/bugs/157	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Giflib Project Search vendor "Giflib Project"		Giflib Search vendor "Giflib Project" for product "Giflib"				5.1.4 Search vendor "Giflib Project" for product "Giflib" and version "5.1.4"		-		Affected