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Oracle Linux: (CVE-2019-11190) (Multiple Advisories): kernel security, bug fix, and enhancement update

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Oracle Linux: (CVE-2019-11190) (Multiple Advisories): kernel security, bug fix, and enhancement update

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:C/I:N/A:N)
Published
04/11/2019
Created
05/18/2019
Added
05/16/2019
Modified
04/09/2020

Description

The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.

Solution(s)

  • oracle-linux-upgrade-dtrace-modules
  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek
  • oracle-linux-upgrade-kernel-uek-debug
  • oracle-linux-upgrade-kernel-uek-debug-devel
  • oracle-linux-upgrade-kernel-uek-devel
  • oracle-linux-upgrade-kernel-uek-doc
  • oracle-linux-upgrade-kernel-uek-firmware

References

  • ELSA-2020-1016
  • USN-4008-1
  • USN-4008-2
  • USN-4008-3
  • CVE-2019-11190

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