What is CVE-2023-52877?

CVE-2023-52877 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 5.12 onward and patched in 5.15.138, 6.1.62, 6.5.11 and others. CVE-2023-52877 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52877?

CVE-2023-52877 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-52877?

Yes, CVE-2023-52877 has been patched. Fixed versions include 5.15.138, 6.1.62, 6.5.11 and others. If you are running Linux kernel 5.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52877 actively exploited?

CVE-2023-52877 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2023-52877

Medium

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm() It is possible that typec_register_partner() returns ERR_PTR on failure. When port->partner is an error, a NULL pointer dereference may occur as shown below. [91222.095236][ T319] typec port0: failed to register partner (-17) ... [91225.061491][ T319] Unable to handle kernel NULL pointer dereference at virtual address 000000000000039f [91225.274642][ T319] pc : tcpm_pd_data_request+0x310/0x13fc [91225.274646][ T319] lr : tcpm_pd_data_request+0x298/0x13fc [91225.308067][ T319] Call trace: [91225.308070][ T319] tcpm_pd_data_request+0x310/0x13fc [91225.308073][ T319] tcpm_pd_rx_handler+0x100/0x9e8 [91225.355900][ T319] kthread_worker_fn+0x178/0x58c [91225.355902][ T319] kthread+0x150/0x200 [91225.355905][ T319] ret_from_fork+0x10/0x30 Add a check for port->partner to avoid dereferencing a NULL pointer.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-01-06

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2023-52877 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.12 and later are affected. Fixed in 5.15.138, 6.1.62, 6.5.11, 6.6.1, 6.7 and their respective stable series.

Affected from

≥ 5.12

Fixed in

✓ 5.15.138 5.15.x ✓ 6.1.62 6.1.x ✓ 6.5.11 6.5.x ✓ 6.6.1 6.6.x ✓ 6.7

References

5 total

Kernel Git
https://git.kernel.org/stable/c/4987daf86c152ff882d51572d154ad12e4ff3a4b

Patch
Kernel Git
https://git.kernel.org/stable/c/9ee038590d808a95d16adf92818dcd4752273c08

Patch
Kernel Git
https://git.kernel.org/stable/c/b37a168c0137156042a0ca9626651b5a789e822b

Patch
Kernel Git
https://git.kernel.org/stable/c/e5f53a68a596e04df3fde3099273435a30b6fdac

Patch
Kernel Git
https://git.kernel.org/stable/c/e7a802447c491903aa7cb45967aa2a934a4e63fc

Patch

Details

CVE ID CVE-2023-52877

Severity Medium

CVSS score 5.5 / 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-2023-52877?

CVE-2023-52877 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 5.12 onward and has been patched in 5.15.138, 6.1.62, 6.5.11 and others. CVE-2023-52877 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52877?

CVE-2023-52877 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-52877?

Yes. CVE-2023-52877 has been patched. Fixed versions include 5.15.138, 6.1.62, 6.5.11 and others. If you are running Linux kernel 5.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52877 actively exploited?

No. CVE-2023-52877 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.