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Oracle Linux: CVE-2020-25285: ELSA-2021-1578: kernel security, bug fix, and enhancement update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2020-25285: ELSA-2021-1578: kernel security, bug fix, and enhancement update (IMPORTANT) (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:M/C:C/I:C/A:C)
Published
09/13/2020
Created
10/09/2020
Added
10/07/2020
Modified
12/06/2024

Description

A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812. A flaw was found in the Linux kernels sysctl handling code for hugepages management. When multiple root level processes would write to modify the /proc/sys/vm/nr_hugepages file it could create a race on internal variables leading to a system crash or memory corruption.

Solution(s)

  • oracle-linux-upgrade-kernel

References

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