CVE-2025-48379

Pillow Vulnerable to Write Buffer Overflow on BCn encoding

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Pillow is a Python imaging library. In versions 11.2.0 to before 11.3.0, there is a heap buffer overflow when writing a sufficiently large (>64k encoded with default settings) image in the DDS format due to writing into a buffer without checking for available space. This only affects users who save untrusted data as a compressed DDS image. This issue has been patched in version 11.3.0.

Pillow es una librería de imágenes de Python. En las versiones 11.2.0 y anteriores a la 11.3.0, se produce un desbordamiento del búfer de montón al escribir una imagen suficientemente grande (más de 64k codificada con la configuración predeterminada) en formato DDS, debido a que se escribe en un búfer sin comprobar el espacio disponible. Esto solo afecta a los usuarios que guardan datos no confiables como una imagen DDS comprimida. Este problema se ha corregido en la versión 11.3.0.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-05-19 CVE Reserved
2025-07-01 CVE Published
2025-07-01 CVE Updated
2025-07-02 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-122: Heap-based Buffer Overflow

CAPEC

References (4)

URL	Tag	Source
https://github.com/python-pillow/Pillow/commit/ef98b3510e3e4f14b547762764813d7e5ca3c5a4	X_refsource_misc
https://github.com/python-pillow/Pillow/pull/9041	X_refsource_misc
https://github.com/python-pillow/Pillow/releases/tag/11.3.0	X_refsource_misc
https://github.com/python-pillow/Pillow/security/advisories/GHSA-xg8h-j46f-w952	X_refsource_confirm

URL	Date	SRC

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
Python-pillow Search vendor "Python-pillow"		Pillow Search vendor "Python-pillow" for product "Pillow"				>= 11.2.0 < 11.3.0 Search vendor "Python-pillow" for product "Pillow" and version " >= 11.2.0 < 11.3.0"		en		Affected