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Category:   OS (Linux)  >   Linux Kernel Vendors:
(Oracle Issues Fix for Oracle Linux) Linux Kernel ACPI Driver Bug Lets Local Users Obtain Potentially Sensitive Information and Bypass ASLR
SecurityTracker Alert ID:  1041442
SecurityTracker URL:
CVE Reference:   CVE-2018-5750   (Links to External Site)
Date:  Aug 10 2018
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Oracle Linux 7
Description:   A vulnerability was reported in the Linux kernel. A local user can obtain potentially sensitive information. A local user can bypass security restrictions.

A local user can submit a specially crafted SBS HC printk system call to trigger a flaw in the acpi_smbus_hc_add() function in 'drivers/acpi/sbshc.c' and obtain potentially sensitive address information and potentially bypass kernel address space layout randomization (KASLR) security protection on the target system.

Impact:   A local user can obtain potentially sensitive information on the target system.

A local user can bypass security controls on the target system.

Solution:   Oracle has issued a fix.

The Oracle Linux advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error

Message History:   This archive entry is a follow-up to the message listed below.
Feb 2 2018 Linux Kernel ACPI Driver Bug Lets Local Users Obtain Potentially Sensitive Information and Bypass ASLR

 Source Message Contents

Subject:  [El-errata] ELSA-2018-4193 Important: Oracle Linux 7 Unbreakable Enterprise kernel security update

Oracle Linux Security Advisory ELSA-2018-4193

The following updated rpms for Oracle Linux 7 have been uploaded to the 
Unbreakable Linux Network:



Description of changes:

- xen/blkback: free requests on disconnection (Dongli Zhang)  [Orabug: 
- RDS: null pointer dereference in rds_atomic_free_op (Mohamed Ghannam) 
[Orabug: 27986376]  {CVE-2018-5333}
- ACPI: sbshc: remove raw pointer from printk() message (Greg 
Kroah-Hartman)  [Orabug: 27986392]  {CVE-2018-5750}
- futex: Prevent overflow by strengthen input validation (Li Jinyue) 
[Orabug: 27986395]  {CVE-2018-6927}

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