CVE-2023-52567

MEDIUM
Published Mar 2, 2024 Modified Dec 11, 2024 CWE-476

Description

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

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/2b837f13a818f96304736453ac53b66a70aaa4f2 https://git.kernel.org/stable/c/3345cc5f02f1fb4c4dcb114706f2210d879ab933 https://git.kernel.org/stable/c/bf3c728e3692cc6d998874f0f27d433117348742 https://git.kernel.org/stable/c/c334650150c29234b0923476f51573ae1b2f252a https://git.kernel.org/stable/c/cce7fc8b29961b64fadb1ce398dc5ff32a79643b https://git.kernel.org/stable/c/e14afa4450cb7e4cf93e993a765801203d41d014 https://git.kernel.org/stable/c/e14f68a48fd445a083ac0750fafcb064df5f18f7 https://git.kernel.org/stable/c/ee5732caaffba3a37e753fdb89b4958db9a61847 https://git.kernel.org/stable/c/2b837f13a818f96304736453ac53b66a70aaa4f2 https://git.kernel.org/stable/c/3345cc5f02f1fb4c4dcb114706f2210d879ab933 https://git.kernel.org/stable/c/bf3c728e3692cc6d998874f0f27d433117348742 https://git.kernel.org/stable/c/c334650150c29234b0923476f51573ae1b2f252a https://git.kernel.org/stable/c/cce7fc8b29961b64fadb1ce398dc5ff32a79643b https://git.kernel.org/stable/c/e14afa4450cb7e4cf93e993a765801203d41d014 https://git.kernel.org/stable/c/e14f68a48fd445a083ac0750fafcb064df5f18f7 https://git.kernel.org/stable/c/ee5732caaffba3a37e753fdb89b4958db9a61847

Frequently Asked Questions

What is CVE-2023-52567? +
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 It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2023-52567? +
CVE-2023-52567 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2023-52567? +
CVE-2023-52567 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-52567? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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