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Cent OS: CVE-2009-1895: CESA-2009:1438 (kernel)

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Cent OS: CVE-2009-1895: CESA-2009:1438 (kernel)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
07/16/2009
Created
07/25/2018
Added
12/01/2016
Modified
07/04/2017

Description

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-debug
  • centos-upgrade-kernel-debug-devel
  • centos-upgrade-kernel-devel
  • centos-upgrade-kernel-doc
  • centos-upgrade-kernel-headers
  • centos-upgrade-kernel-hugemem
  • centos-upgrade-kernel-hugemem-devel
  • centos-upgrade-kernel-pae
  • centos-upgrade-kernel-pae-devel
  • centos-upgrade-kernel-smp
  • centos-upgrade-kernel-smp-devel
  • centos-upgrade-kernel-xen
  • centos-upgrade-kernel-xen-devel
  • centos-upgrade-kernel-xenu
  • centos-upgrade-kernel-xenu-devel

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