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CentOS Linux: CVE-2019-11487: Important: kernel security and bug fix update (Multiple Advisories)

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CentOS Linux: CVE-2019-11487: Important: kernel security and bug fix update (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
04/23/2019
Created
09/12/2019
Added
09/11/2019
Modified
05/25/2023

Description

The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

References

  • 108054
  • CVE-2019-11487
  • RHSA-2019:2703
  • RHSA-2019:2741
  • RHSA-2020:0174

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