CVE-2024-35869

2024-05-1900:00:00

ubuntu.com

linux kernel

smb client

vulnerability

cve-2024-35869

use-after-free

refcounted children

parent session

dfs mount

CVSS3

8.4

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.8

Confidence

High

EPSS

Percentile

15.5%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu22.04noarchlinux< anyUNKNOWN
ubuntu24.04noarchlinux< 6.8.0-38.38UNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu22.04noarchlinux-aws< anyUNKNOWN
ubuntu24.04noarchlinux-aws< 6.8.0-1011.12UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< anyUNKNOWN
ubuntu22.04noarchlinux-aws-6.5< anyUNKNOWN
ubuntu20.04noarchlinux-azure< anyUNKNOWN
ubuntu22.04noarchlinux-azure< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	22.04	noarch	linux	< any	UNKNOWN
ubuntu	24.04	noarch	linux	< 6.8.0-38.38	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	24.04	noarch	linux-aws	< 6.8.0-1011.12	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< any	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< any	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< any	UNKNOWN