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

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

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:C/I:N/A:N)
Published
04/12/2019
Created
04/02/2020
Added
04/01/2020
Modified
05/25/2023

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)

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

References

  • 107890
  • CVE-2019-11190

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