CVE-2023-52519 HID: intel-ish-hid: ipc: Disable and reenable ACPI GPE bit
An integer overflow in the Intel ISH HID driver can cause a denial of service when the ACPI GPE bit is re-enabled on resume.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-52519?
CVE-2023-52519 is a high-severity vulnerability in Linux kernel, published on 2 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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().
Weakness: CWE-125
Which versions are affected by CVE-2023-52519?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-52519?
Apply the vendor's patch.
Is CVE-2023-52519 being exploited?
There is no known exploitation of CVE-2023-52519 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-52519, DEBIAN-CVE-2023-52519, GHSA-vvwp-xfww-2qhh, UBUNTU-CVE-2023-52519.