| Revision Date: | 2013-04-29 | Version: | 12 | | Title: | 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). | | 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). | | Family: | unix | Class: | vulnerability | | Status: | ACCEPTED | Reference(s): | CVE-2009-1895
| | Platform(s): | CentOS Linux 3
CentOS Linux 4
CentOS Linux 5
Oracle Linux 4
Oracle Linux 5
Red Hat Enterprise Linux 3
Red Hat Enterprise Linux 4
Red Hat Enterprise Linux 5
| Product(s): | | | Definition Synopsis | | OS Section: RHEL3, CentOS3 RHEL3 or CentOS3
The operating system installed on the system is Red Hat Enterprise Linux 3
OR CentOS Linux 3.x
AND Configuration section
kernel-BOOT is earlier than 0:2.4.21-63.EL
OR kernel-unsupported is earlier than 0:2.4.21-63.EL
OR kernel-smp-unsupported is earlier than 0:2.4.21-63.EL
OR kernel-hugemem-unsupported is earlier than 0:2.4.21-63.EL
OR kernel-hugemem is earlier than 0:2.4.21-63.EL
OR kernel is earlier than 0:2.4.21-63.EL
OR kernel-source is earlier than 0:2.4.21-63.EL
OR kernel-doc is earlier than 0:2.4.21-63.EL
OR kernel-smp is earlier than 0:2.4.21-63.EL
OR OS Section: RHEL4, CentOS4, Oracle Linux 4
RHEL4, CentOS4 or Oracle Linux 4
The operating system installed on the system is Red Hat Enterprise Linux 4
OR CentOS Linux 4.x
OR Oracle Linux 4.x
AND Configuration section
kernel-xenU is earlier than 0:2.6.9-89.0.11.EL
OR kernel-hugemem is earlier than 0:2.6.9-89.0.11.EL
OR kernel-hugemem-devel is earlier than 0:2.6.9-89.0.11.EL
OR kernel-xenU-devel is earlier than 0:2.6.9-89.0.11.EL
OR kernel-smp-devel is earlier than 0:2.6.9-89.0.11.EL
OR kernel-largesmp-devel is earlier than 0:2.6.9-89.0.11.EL
OR kernel is earlier than 0:2.6.9-89.0.11.EL
OR kernel-devel is earlier than 0:2.6.9-89.0.11.EL
OR kernel-doc is earlier than 0:2.6.9-89.0.11.EL
OR kernel-largesmp is earlier than 0:2.6.9-89.0.11.EL
OR kernel-smp is earlier than 0:2.6.9-89.0.11.EL
OR OS Section: RHEL5, CentOS5, Oracle Linux 5
RHEL5, CentOS5 or Oracle Linux 5
The operating system installed on the system is Red Hat Enterprise Linux 5
OR The operating system installed on the system is CentOS Linux 5.x
OR Oracle Linux 5.x
AND Configuration section
kernel-kdump is earlier than 0:2.6.18-128.4.1.el5
OR kernel-debug is earlier than 0:2.6.18-128.4.1.el5
OR kernel-xen is earlier than 0:2.6.18-128.4.1.el5
OR kernel-headers is earlier than 0:2.6.18-128.4.1.el5
OR kernel-kdump-devel is earlier than 0:2.6.18-128.4.1.el5
OR kernel-xen-devel is earlier than 0:2.6.18-128.4.1.el5
OR kernel is earlier than 0:2.6.18-128.4.1.el5
OR kernel-PAE-devel is earlier than 0:2.6.18-128.4.1.el5
OR kernel-devel is earlier than 0:2.6.18-128.4.1.el5
OR kernel-PAE is earlier than 0:2.6.18-128.4.1.el5
OR kernel-debug-devel is earlier than 0:2.6.18-128.4.1.el5
OR kernel-doc is earlier than 0:2.6.18-128.4.1.el5
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