CVE-2023-52480

Severity CVSS v4.0:

Pending analysis

Type:

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Publication date:

29/02/2024

Last modified:

13/01/2025

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix race condition between session lookup and expire Thread A + Thread B ksmbd_session_lookup | smb2_sess_setup sess = xa_load | | | xa_erase(&conn->sessions, sess->id); | | ksmbd_session_destroy(sess) --> kfree(sess) | // UAF! | sess->last_active = jiffies | + This patch add rwsem to fix race condition between ksmbd_session_lookup and ksmbd_expire_session.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.00

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.15 (including)	5.15.145 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.57 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.5.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.6:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.6:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.6:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.6:rc4::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-52480

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools