Information Exposure Affecting kernel-rt-debug-modules-internal package, versions *
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGMODULESINTERNAL-5774637
- published 13 Jul 2023
- disclosed 23 Jun 2023
How to fix?
There is no fixed version for Centos:8 kernel-rt-debug-modules-internal.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-internal package and not the kernel-rt-debug-modules-internal package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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.