What is CVE-2023-52749?

CVE-2023-52749 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Race Condition flaw (CWE-362), affecting Linux kernel versions from 6.0 onward and patched in 6.1.66, 6.6.3 and 6.7. CVE-2023-52749 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52749?

CVE-2023-52749 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-52749?

Yes, CVE-2023-52749 has been patched. Fixed versions include 6.1.66, 6.6.3 and 6.7. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52749 actively exploited?

CVE-2023-52749 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-2023-52749

Medium

In the Linux kernel, the following vulnerability has been resolved: spi: Fix null dereference on suspend A race condition exists where a synchronous (noqueue) transfer can be active during a system suspend. This can cause a null pointer dereference exception to occur when the system resumes. Example order of events leading to the exception: 1. spi_sync() calls __spi_transfer_message_noqueue() which sets ctlr->cur_msg 2. Spi transfer begins via spi_transfer_one_message() 3. System is suspended interrupting the transfer context 4. System is resumed 6. spi_controller_resume() calls spi_start_queue() which resets cur_msg to NULL 7. Spi transfer context resumes and spi_finalize_current_message() is called which dereferences cur_msg (which is now NULL) Wait for synchronous transfers to complete before suspending by acquiring the bus mutex and setting/checking a suspend flag.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-01-06

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-362

CVE-2023-52749 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 6.0 and later are affected. Fixed in 6.1.66, 6.6.3, 6.7 and their respective stable series.

Affected from

≥ 6.0

Fixed in

✓ 6.1.66 6.1.x ✓ 6.6.3 6.6.x ✓ 6.7

References

3 total

Kernel Git
https://git.kernel.org/stable/c/4ec4508db97502a12daee88c74782e8d35ced068

Patch
Kernel Git
https://git.kernel.org/stable/c/96474ea47dc67b0704392d59192b233c8197db0e

Patch
Kernel Git
https://git.kernel.org/stable/c/bef4a48f4ef798c4feddf045d49e53c8a97d5e37

Patch

Details

CVE ID CVE-2023-52749

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-01-06

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52749?

CVE-2023-52749 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 6.0 onward and has been patched in 6.1.66, 6.6.3 and 6.7. CVE-2023-52749 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52749?

CVE-2023-52749 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-52749?

Yes. CVE-2023-52749 has been patched. Fixed versions include 6.1.66, 6.6.3 and 6.7. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52749 actively exploited?

No. CVE-2023-52749 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.