What is CVE-2023-52513?

CVE-2023-52513 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 5.3 onward and patched in 5.4.258, 5.10.198, 5.15.135 and others. CVE-2023-52513 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52513?

CVE-2023-52513 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-2023-52513?

Yes, CVE-2023-52513 has been patched. Fixed versions include 5.4.258, 5.10.198, 5.15.135 and others. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52513 actively exploited?

CVE-2023-52513 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-2023-52513

Medium

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix connection failure handling In case immediate MPA request processing fails, the newly created endpoint unlinks the listening endpoint and is ready to be dropped. This special case was not handled correctly by the code handling the later TCP socket close, causing a NULL dereference crash in siw_cm_work_handler() when dereferencing a NULL listener. We now also cancel the useless MPA timeout, if immediate MPA request processing fails. This patch furthermore simplifies MPA processing in general: Scheduling a useless TCP socket read in sk_data_ready() upcall is now surpressed, if the socket is already moved out of TCP_ESTABLISHED state.

Package Linux Kernel

Published 2024-03-02

Last modified 2024-12-11

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-2023-52513 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 5.3 and later are affected. Fixed in 5.4.258, 5.10.198, 5.15.135, 6.1.57, 6.5.7, 6.6 and their respective stable series.

Affected from

≥ 5.3

Fixed in

✓ 5.4.258 5.4.x ✓ 5.10.198 5.10.x ✓ 5.15.135 5.15.x ✓ 6.1.57 6.1.x ✓ 6.5.7 6.5.x ✓ 6.6

References

6 total

Kernel Git
https://git.kernel.org/stable/c/0d520cdb0cd095eac5d00078dfd318408c9b5eed

Patch
Kernel Git
https://git.kernel.org/stable/c/53a3f777049771496f791504e7dc8ef017cba590

Patch
Kernel Git
https://git.kernel.org/stable/c/5cf38e638e5d01b68f9133968a85e8b3fd1ecf2f

Patch
Kernel Git
https://git.kernel.org/stable/c/6e26812e289b374c17677d238164a5a8f5770594

Patch
Kernel Git
https://git.kernel.org/stable/c/81b7bf367eea795d259d0261710c6a89f548844d

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2023-52513

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-03-02

Modified 2024-12-11

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52513?

CVE-2023-52513 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 5.3 onward and has been patched in 5.4.258, 5.10.198, 5.15.135 and others. CVE-2023-52513 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52513?

CVE-2023-52513 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-2023-52513?

Yes. CVE-2023-52513 has been patched. Fixed versions include 5.4.258, 5.10.198, 5.15.135 and others. If you are running Linux kernel 5.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52513 actively exploited?

No. CVE-2023-52513 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.