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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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().
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/60fb3f054c99608ddb1f2466c07108da6292951ePatch
- https://git.kernel.org/stable/c/8781fe259dd5a178fdd1069401bbd1437f9491c5Patch
- https://git.kernel.org/stable/c/8f02139ad9a7e6e5c05712f8c1501eebed8eacfdPatch
- https://git.kernel.org/stable/c/cdcc04e844a2d22d9d25cef1e8e504a174ea9f8fPatch
- https://git.kernel.org/stable/c/60fb3f054c99608ddb1f2466c07108da6292951ePatch
- https://git.kernel.org/stable/c/8781fe259dd5a178fdd1069401bbd1437f9491c5Patch
- https://git.kernel.org/stable/c/8f02139ad9a7e6e5c05712f8c1501eebed8eacfdPatch
- https://git.kernel.org/stable/c/cdcc04e844a2d22d9d25cef1e8e504a174ea9f8fPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.