What is CVE-2023-52766?

CVE-2023-52766 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, classified as a Out-of-bounds Read flaw (CWE-125), affecting Linux kernel versions from 5.0 onward and patched in 5.15.140, 6.1.64, 6.5.13 and others. CVE-2023-52766 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52766?

CVE-2023-52766 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2023-52766?

Yes, CVE-2023-52766 has been patched. Fixed versions include 5.15.140, 6.1.64, 6.5.13 and others. If you are running Linux kernel 5.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52766 actively exploited?

CVE-2023-52766 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/125.html

CVE-2023-52766

High

In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler Do not loop over ring headers in hci_dma_irq_handler() that are not allocated and enabled in hci_dma_init(). Otherwise out of bounds access will occur from rings->headers[i] access when i >= number of allocated ring headers.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-01-06

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-125

CVE-2023-52766 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.0 and later are affected. Fixed in 5.15.140, 6.1.64, 6.5.13, 6.6.3, 6.7 and their respective stable series.

Affected from

≥ 5.0

Fixed in

✓ 5.15.140 5.15.x ✓ 6.1.64 6.1.x ✓ 6.5.13 6.5.x ✓ 6.6.3 6.6.x ✓ 6.7

References

5 total

Kernel Git
https://git.kernel.org/stable/c/45a832f989e520095429589d5b01b0c65da9b574

Patch
Kernel Git
https://git.kernel.org/stable/c/4c86cb2321bd9c72d3b945ce7f747961beda8e65

Patch
Kernel Git
https://git.kernel.org/stable/c/7c2b91b30d74d7c407118ad72502d4ca28af1af6

Patch
Kernel Git
https://git.kernel.org/stable/c/8be39f66915b40d26ea2c18ba84b5c3d5da6809b

Patch
Kernel Git
https://git.kernel.org/stable/c/d23ad76f240c0f597b7a9eb79905d246f27d40df

Patch

Details

CVE ID CVE-2023-52766

Severity High

CVSS score 7.1 / 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-2023-52766?

CVE-2023-52766 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 5.0 onward and has been patched in 5.15.140, 6.1.64, 6.5.13 and others. CVE-2023-52766 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52766?

CVE-2023-52766 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2023-52766?

Yes. CVE-2023-52766 has been patched. Fixed versions include 5.15.140, 6.1.64, 6.5.13 and others. If you are running Linux kernel 5.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52766 actively exploited?

No. CVE-2023-52766 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.