CVE-2023-52519: linux kernel Out-of-bounds Read — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: ipc: Disable and reenable ACPI GPE bit The EHL (Elkhart Lake) based platforms provide a OOB (Out of band) service, which allows to wakup device when the system is in S5 (Soft-Off state). This OOB service can be enabled/disabled from BIOS settings. When enabled, the ISH device gets PME wake capability. To enable PME wakeup, driver also needs to enable ACPI GPE bit. On resume, BIOS will clear the wakeup bit. So driver need to re-enable it in resume function to keep the next wakeup capability. But this BIOS clearing of wakeup bit doesn't decrement internal OS GPE reference count, so this reenabling on every resume will cause reference count to overflow. So first disable and reenable ACPI GPE bit using acpi_disable_gpe().

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CVSS v3.1 Score

7.1

HIGH

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

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.12 — 5.15.135
linux	linux_kernel	5.16 — 6.1.57
linux	linux_kernel	6.2 — 6.5.7
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/60fb3f054c99608ddb1f2466c07108da6292951e https://git.kernel.org/stable/c/8781fe259dd5a178fdd1069401bbd1437f9491c5 https://git.kernel.org/stable/c/8f02139ad9a7e6e5c05712f8c1501eebed8eacfd https://git.kernel.org/stable/c/cdcc04e844a2d22d9d25cef1e8e504a174ea9f8f https://git.kernel.org/stable/c/60fb3f054c99608ddb1f2466c07108da6292951e https://git.kernel.org/stable/c/8781fe259dd5a178fdd1069401bbd1437f9491c5 https://git.kernel.org/stable/c/8f02139ad9a7e6e5c05712f8c1501eebed8eacfd https://git.kernel.org/stable/c/cdcc04e844a2d22d9d25cef1e8e504a174ea9f8f

Frequently Asked Questions

What is CVE-2023-52519? +

In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: ipc: Disable and reenable ACPI GPE bit The EHL (Elkhart Lake) based platforms provide a OOB (Out of band) service, which allows to wakup device when the system is in S5 (Soft-Off state). This OOB service can be enabled/disabled from BIOS settings. When enabled, the ISH device gets PME wake capability. To enable PME wakeup, driver also needs to enable ACPI GPE bit. On resume, BIOS will clear the wakeup bit. So driver need to re-enable it in resume function to keep the next wakeup capability. But this BIOS clearing of wakeup bit doesn't decrement internal OS GPE reference count, so this reenabling on every resume will cause reference count to overflow. So first disable and reenable ACPI GPE bit using acpi_disable_gpe(). It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2023-52519? +

CVE-2023-52519 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-52519? +

CVE-2023-52519 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-2023-52519? +

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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CVE-2023-52519