CVE-2023-52567

Medium

In the Linux kernel, the following vulnerability has been resolved: serial: 8250_port: Check IRQ data before use In case the leaf driver wants to use IRQ polling (irq = 0) and IIR register shows that an interrupt happened in the 8250 hardware the IRQ data can be NULL. In such a case we need to skip the wake event as we came to this path from the timer interrupt and quite likely system is already awake. Without this fix we have got an Oops: serial8250: ttyS0 at I/O 0x3f8 (irq = 0, base_baud = 115200) is a 16550A ... BUG: kernel NULL pointer dereference, address: 0000000000000010 RIP: 0010:serial8250_handle_irq+0x7c/0x240 Call Trace: ? serial8250_handle_irq+0x7c/0x240 ? __pfx_serial8250_timeout+0x10/0x10

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-2023-52567 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 4.14.315, 4.19.283, 5.4.243, 5.10.180, 5.15.111, 6.1.28, 6.2.15, 6.3.2, 6.4 and later are affected. Fixed in 4.14.327, 4.19.296, 5.4.258, 5.10.198, 5.15.134, 6.1.56, 6.5.6, 6.6 and their respective stable series.

Affected from
≥ 4.14.315 ≥ 4.19.283 ≥ 5.4.243 ≥ 5.10.180 ≥ 5.15.111 ≥ 6.1.28 ≥ 6.2.15 ≥ 6.3.2 ≥ 6.4
Fixed in
✓ 4.14.327 4.14.x ✓ 4.19.296 4.19.x ✓ 5.4.258 5.4.x ✓ 5.10.198 5.10.x ✓ 5.15.134 5.15.x ✓ 6.1.56 6.1.x ✓ 6.5.6 6.5.x ✓ 6.6

References

8 total
Showing 5 of 8 references View all on NVD

Frequently asked questions

  • What is CVE-2023-52567?

    CVE-2023-52567 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 4.14.315 onward and has been patched in 4.14.327, 4.19.296, 5.4.258 and others. CVE-2023-52567 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-52567?

    CVE-2023-52567 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-2023-52567?

    Yes. CVE-2023-52567 has been patched. Fixed versions include 4.14.327, 4.19.296, 5.4.258 and others. If you are running Linux kernel 4.14.315 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2023-52567 actively exploited?

    No. CVE-2023-52567 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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