National Cyber-Alert System

Vulnerability Summary for CVE-2009-1895

Overview

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).

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: VUPEN

Name: ADV-2009-1866

Type: Advisory; Patch Information

Hyperlink:http://www.vupen.com/english/advisories/2009/1866

External Source: CONFIRM

Name: http://patchwork.kernel.org/patch/32598/

Type: Advisory; Patch Information

Hyperlink:http://patchwork.kernel.org/patch/32598/

External Source: MISC

Name: http://blog.cr0.org/2009/06/bypassing-linux-null-pointer.html

Type: Patch Information

Hyperlink:http://blog.cr0.org/2009/06/bypassing-linux-null-pointer.html

External Source: FEDORA

Name: FEDORA-2009-8144

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00223.html

External Source: FEDORA

Name: FEDORA-2009-8264

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00166.html

External Source: REDHAT

Name: RHSA-2009:1550

Hyperlink:https://rhn.redhat.com/errata/RHSA-2009-1550.html

External Source: REDHAT

Name: RHSA-2009:1540

Hyperlink:https://rhn.redhat.com/errata/RHSA-2009-1540.html

External Source: CONFIRM

Name: https://bugs.launchpad.net/bugs/cve/2009-1895

Hyperlink:https://bugs.launchpad.net/bugs/cve/2009-1895

External Source: VUPEN

Name: ADV-2009-3316

Hyperlink:http://www.vupen.com/english/advisories/2009/3316

External Source: CONFIRM

Name: http://www.vmware.com/security/advisories/VMSA-2009-0016.html

Hyperlink:http://www.vmware.com/security/advisories/VMSA-2009-0016.html

External Source: UBUNTU

Name: USN-807-1

Hyperlink:http://www.ubuntu.com/usn/usn-807-1

External Source: BID

Name: 35647

Hyperlink:http://www.securityfocus.com/bid/35647

External Source: BUGTRAQ

Name: 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/507985/100/0/threaded

External Source: BUGTRAQ

Name: 20090724 rPSA-2009-0111-1 kernel

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/505254/100/0/threaded

External Source: REDHAT

Name: RHSA-2009:1438

Hyperlink:http://www.redhat.com/support/errata/RHSA-2009-1438.html

External Source: REDHAT

Name: RHSA-2009:1193

Hyperlink:http://www.redhat.com/support/errata/RHSA-2009-1193.html

External Source: OSVDB

Name: 55807

Hyperlink:http://www.osvdb.org/55807

External Source: CONFIRM

Name: http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc3

Type: Advisory

Hyperlink:http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc3

External Source: DEBIAN

Name: DSA-1845

Hyperlink:http://www.debian.org/security/2009/dsa-1845

External Source: DEBIAN

Name: DSA-1844

Hyperlink:http://www.debian.org/security/2009/dsa-1844

External Source: CONFIRM

Name: http://wiki.rpath.com/Advisories:rPSA-2009-0111

Hyperlink:http://wiki.rpath.com/Advisories:rPSA-2009-0111

External Source: SECUNIA

Name: 37471

Hyperlink:http://secunia.com/advisories/37471

External Source: SECUNIA

Name: 36759

Hyperlink:http://secunia.com/advisories/36759

External Source: SECUNIA

Name: 36131

Hyperlink:http://secunia.com/advisories/36131

External Source: SECUNIA

Name: 36116

Hyperlink:http://secunia.com/advisories/36116

External Source: SECUNIA

Name: 36054

Hyperlink:http://secunia.com/advisories/36054

External Source: SECUNIA

Name: 36051

Hyperlink:http://secunia.com/advisories/36051

External Source: SECUNIA

Name: 36045

Hyperlink:http://secunia.com/advisories/36045

External Source: SECUNIA

Name: 35801

Type: Advisory

Hyperlink:http://secunia.com/advisories/35801

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f9fabcb58a6d26d6efde842d1703ac7cfa9427b6

Type: Advisory

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f9fabcb58a6d26d6efde842d1703ac7cfa9427b6