IM
IronMonkey Threat Research

CVE-2025-38702 HIGH

Published: 2025-09-04 | Last Modified: 2026-05-12 | Status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: fix potential buffer overflow in do_register_framebuffer() The current implementation may lead to buffer overflow when: 1. Unregistration creates NULL gaps in registered_fb[] 2. All array slots become occupied despite num_registered_fb < FB_MAX 3. The registration loop exceeds array bounds Add boundary check to prevent registered_fb[FB_MAX] access.

CVSS Metrics

Base Score: 7.8 (HIGH)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactHIGH
Integrity ImpactHIGH
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 5.9

Weaknesses

Source Type Description
[email protected] Primary
en CWE-787

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd385615280> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd3688a7900> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36a6e5000> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd39c4a6140> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd2a1e25700> Operating System
linux linux_kernel 2.6.12 <built-in method update of dict object at 0x7fd34061d940> Operating System
linux linux_kernel 2.6.12 <built-in method update of dict object at 0x7fd39c4d4300> Operating System
linux linux_kernel 2.6.12 <built-in method update of dict object at 0x7fd384424e00> Operating System
linux linux_kernel 2.6.12 <built-in method update of dict object at 0x7fd39c4d4200> Operating System
linux linux_kernel 2.6.12 <built-in method update of dict object at 0x7fd36adf7f80> Operating System
debian debian_linux 11.0 <built-in method update of dict object at 0x7fd39c4d4f00> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References