CVE-2024-35869

smb: client: guarantee refcounted children from parent session

Severity Score

8.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

smb: client: guarantee refcounted children from parent session

Avoid potential use-after-free bugs when walking DFS referrals,
mounting and performing DFS failover by ensuring that all children
from parent @tcon->ses are also refcounted. They're all needed across
the entire DFS mount. Get rid of @tcon->dfs_ses_list while we're at
it, too.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: garantiza que los hijos recontados desde la sesión principal Evite posibles errores de use after free al recorrer referencias DFS, montar y realizar la conmutación por error de DFS asegurándose de que todos los hijos del padre @tcon- >ses también se cuentan nuevamente. Todos son necesarios en todo el montaje DFS. Deshazte de @tcon->dfs_ses_list mientras estamos en eso también.

The following vulnerability has been resolved in the Linux kernel: smb: client: Fix - Guarantee refcounted children from the parent session.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2024-05-17 CVE Reserved
2024-05-19 CVE Published
2024-05-20 EPSS Updated
2024-11-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/645f332c6b63499cc76197f9b6bffcc659ba64cc	2024-04-27
https://git.kernel.org/stable/c/e1db9ae87b7148c021daee1fcc4bc71b2ac58a79	2024-04-10
https://git.kernel.org/stable/c/062a7f0ff46eb57aff526897bd2bebfdb1d3046a	2024-04-02

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-35869	2024-11-12
https://bugzilla.redhat.com/show_bug.cgi?id=2281742	2024-11-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.29 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.29"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.8.5 Search vendor "Linux" for product "Linux Kernel" and version " < 6.8.5"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.9 Search vendor "Linux" for product "Linux Kernel" and version " < 6.9"		en		Affected