A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implemented in /arch/x86/mm/cpu_entry_area.c, which works through the init_cea_offsets() function when KASLR is enabled. However, despite this feature, there is still a risk of per-cpu entry area leaks. This issue could allow a local user to gain access to some important data with memory in an expected location and potentially escalate their privileges on the system.
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Wed, 16 Apr 2025 15:00:00 +0000
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CPEs | cpe:/a:redhat:enterprise_linux:9 |
Tue, 15 Apr 2025 11:45:00 +0000
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CPEs | cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::nfv cpe:/a:redhat:enterprise_linux:9::realtime cpe:/o:redhat:enterprise_linux:9::baseos |
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Wed, 05 Mar 2025 19:15:00 +0000
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2025-04-15T11:40:03.124Z
Reserved: 2023-07-12T15:37:45.552Z
Link: CVE-2023-3640

Updated: 2024-08-02T07:01:57.304Z

Status : Modified
Published: 2023-07-24T16:15:13.063
Modified: 2025-04-15T12:15:17.840
Link: CVE-2023-3640
