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Red Hat: CVE-2023-0597: kernel: x86/mm: Randomize per-cpu entry area (Multiple Advisories)

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Red Hat: CVE-2023-0597: kernel: x86/mm: Randomize per-cpu entry area (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:N)
Published
02/23/2023
Created
11/09/2023
Added
11/08/2023
Modified
02/10/2025

Description

A flaw possibility of memory leak in the Linux kernel cpu_entry_area mapping of X86 CPU data to memory was found in the way user can guess location of exception stack(s) or other important data. A local user could use this flaw to get access to some important data with expected location in memory.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2023-0597
  • RHSA-2023:6583
  • RHSA-2023:6901
  • RHSA-2023:7077
  • RHSA-2024:10262
  • RHSA-2024:10772
  • RHSA-2024:10773
  • RHSA-2024:1188
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