What is CVE-2023-52480?

CVE-2023-52480 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10, classified as a Race Condition flaw (CWE-362), affecting Linux kernel versions from 5.15 onward and patched in 5.15.145, 6.1.57, 6.5.7 and others. CVE-2023-52480 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52480?

CVE-2023-52480 has a CVSS score of 7.0 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-52480?

Yes, CVE-2023-52480 has been patched. Fixed versions include 5.15.145, 6.1.57, 6.5.7 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52480 actively exploited?

CVE-2023-52480 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2023-52480

High

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.

Package Linux Kernel

Published 2024-02-29

Last modified 2025-01-13

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.0

out of 10

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-362

CVE-2023-52480 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 5.15.145, 6.1.57, 6.5.7, 6.6 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 5.15.145 5.15.x ✓ 6.1.57 6.1.x ✓ 6.5.7 6.5.x ✓ 6.6

References

4 total

Kernel Git
https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be

Patch
Kernel Git
https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f

Patch
Kernel Git
https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b

Patch
Kernel Git
https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f

Patch

Details

CVE ID CVE-2023-52480

Severity High

CVSS score 7.0 / 10

CVSS version 3.1

Published 2024-02-29

Modified 2025-01-13

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52480?

CVE-2023-52480 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 5.15 onward and has been patched in 5.15.145, 6.1.57, 6.5.7 and others. CVE-2023-52480 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52480?

CVE-2023-52480 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-52480?

Yes. CVE-2023-52480 has been patched. Fixed versions include 5.15.145, 6.1.57, 6.5.7 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52480 actively exploited?

No. CVE-2023-52480 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.