IM
IronMonkey Threat Research

CVE-2024-49902 HIGH

Published: 2024-10-21 | Last Modified: 2026-08-04 | Status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: jfs: check if leafidx greater than num leaves per dmap tree syzbot report a out of bounds in dbSplit, it because dmt_leafidx greater than num leaves per dmap tree, add a checking for dmt_leafidx in dbFindLeaf. Shaggy: Modified sanity check to apply to control pages as well as leaf pages.

Additional Descriptions (1)

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jfs: comprobar si leafidx es mayor que la cantidad de hojas por árbol dmap syzbot informa que dbSplit está fuera de los límites, esto se debe a que dmt_leafidx es mayor que la cantidad de hojas por árbol dmap, se agrega una verificación para dmt_leafidx en dbFindLeaf. Shaggy: Se modificó la verificación de cordura para que se aplique a las páginas de control y a las páginas de hoja.

CVSS Metrics

Base Score: 5.5 (MEDIUM)

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

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

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 3.6

Weaknesses

Source Type Description
[email protected] Primary
en NVD-CWE-noinfo

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd3703cc680> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36b25ebc0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36b25ea00> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36b25c740> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd3703ce440> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd3703cf0c0> 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:*:*:*:*:*:*:*:*

References