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Vulnerability Details : CVE-2009-3286

NFSv4 in the Linux kernel 2.6.18, and possibly other versions, does not properly clean up an inode when an O_EXCL create fails, which causes files to be created with insecure settings such as setuid bits, and possibly allows local users to gain privileges, related to the execution of the do_open_permission function even when a create fails.
Publish Date : 2009-09-22 Last Update Date : 2017-09-18
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- CVSS Scores & Vulnerability Types

CVSS Score
4.6
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Gain privileges
CWE ID 264

- Vendor Statements

This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, and Red Hat Enterprise MRG. It was addressed in Red Hat Enterprise Linux 5 via: https://rhn.redhat.com/errata/RHSA-2009-1548.html
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important
4.6
AV:L/AC:L/Au:N/C:P/I:P/A:P 2009-09-21 2009-09-09
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-3286 oval:org.opensuse.security:def:20093286 unix
DSA-1915 linux-2.6 -- privilege escalation/denial of service/sensitive memory leak oval:org.mitre.oval:def:7639 unix
DSA-1915-1 linux-2.6 -- privilege escalation/denial of service/sensitive memory leak oval:org.mitre.oval:def:13588 unix
DSA-1928 linux-2.6.24 -- privilege escalation/denial of service/sensitive memory leak oval:org.mitre.oval:def:7937 unix
DSA-1928-1 linux-2.6.24 -- privilege escalation/denial of service/sensitive memory leak oval:org.mitre.oval:def:13351 unix
DSA-1929-1 linux-2.6 -- privilege escalation/denial of service/sensitive memory leak oval:org.mitre.oval:def:13735 unix
ELSA-2009:1548: kernel security and bug fix update (Important) oval:org.mitre.oval:def:22999 unix
Linux kernel 'O_EXCL' NFSv4 Privilege Escalation Vulnerability oval:org.mitre.oval:def:7527 unix
NFSv4 in the Linux kernel 2.6.18, and possibly other versions, does not properly clean up an inode when an O_EXCL create... oval:org.mitre.oval:def:9757 unix
RHSA-2009:1548 -- kernel security and bug fix update (Important) oval:org.mitre.oval:def:29269 unix
RHSA-2009:1548: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20091548 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-3286

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 2.6.18 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2009-3286

https://rhn.redhat.com/errata/RHSA-2009-1548.html
REDHAT RHSA-2009:1548
https://bugzilla.redhat.com/show_bug.cgi?id=524520 CONFIRM
http://www.ubuntu.com/usn/USN-852-1
UBUNTU USN-852-1
http://www.vupen.com/english/advisories/2010/0528
VUPEN ADV-2010-0528
http://www.openwall.com/lists/oss-security/2009/09/21/2
MLIST [oss-security] 20090921 CVE request: kernel: issue with O_EXCL creates on NFSv4
http://lists.vmware.com/pipermail/security-announce/2010/000082.html
MLIST [security-announce] 20100303 VMSA-2010-0004 ESX Service Console and vMA third party updates
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=81ac95c5 CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
SUSE SUSE-SA:2010:012

- Metasploit Modules Related To CVE-2009-3286

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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