CVE-2021-22563

Memory Overread in libjxl

Severity Score

4.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector<std::vector<T>> when rendering splines. The OOB read access can either lead to a segfault, or rendering splines based on other process memory. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/757

Las imágenes JPEG XL no válidas que usan libjxl pueden causar un acceso fuera de límites en un std::vector> cuando se renderizan splines. El acceso de lectura OOB puede conllevar a un segfault, o renderizar splines basados en la memoria de otro proceso. Se recomienda actualizar a partir de la versión 0.6.0 o parchear con https://github.com/libjxl/libjxl/pull/757

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-05 CVE Reserved
2021-11-01 CVE Published
2023-05-25 EPSS Updated
2024-09-17 CVE Updated
2024-09-17 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-125: Out-of-bounds Read
CWE-126: Buffer Over-read

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/libjxl/libjxl/issues/735	2024-09-17

URL	Date	SRC
https://github.com/libjxl/libjxl/pull/757	2021-11-03

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Libjxl Project Search vendor "Libjxl Project"		Libjxl Search vendor "Libjxl Project" for product "Libjxl"				< 0.6.0 Search vendor "Libjxl Project" for product "Libjxl" and version " < 0.6.0"		-		Affected