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Vulnerability Details : CVE-2007-6417

The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory in some rare circumstances related to tmpfs, which might allow local users to read sensitive kernel data or cause a denial of service (crash).
Publish Date : 2007-12-17 Last Update Date : 2010-08-21
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
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 Admin
Vulnerability Type(s) Denial Of Service
CWE ID 399

- Vendor Statements

This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and Red Hat Enterprise MRG. It was addressed in Red Hat Enterprise Linux 5 via: https://rhn.redhat.com/errata/RHSA-2008-0885.html
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate 2007-12-15 2007-11-28
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-6417 oval:org.opensuse.security:def:20076417 unix
DSA-1436-1 linux-2.6 fai-kernels user-mode-linux - several vulnerabilities oval:org.mitre.oval:def:20546 unix
ELSA-2008:0885: kernel security and bug fix update (Important) oval:org.mitre.oval:def:22656 unix
RHSA-2008:0885 -- kernel security and bug fix update (Important) oval:org.mitre.oval:def:29129 unix
RHSA-2008:0885: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20080885 unix
The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory i... oval:org.mitre.oval:def:8920 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-2007-6417

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 2.6.11 Version Details Vulnerabilities
2 OS Linux Linux Kernel 2.6.12 Version Details Vulnerabilities
3 OS Linux Linux Kernel 2.6.13 Version Details Vulnerabilities
4 OS Linux Linux Kernel 2.6.14 Version Details Vulnerabilities
5 OS Linux Linux Kernel 2.6.15 Version Details Vulnerabilities
6 OS Linux Linux Kernel 2.6.16 Version Details Vulnerabilities
7 OS Linux Linux Kernel 2.6.17 Version Details Vulnerabilities
8 OS Linux Linux Kernel 2.6.18 Version Details Vulnerabilities
9 OS Linux Linux Kernel 2.6.19.0 Version Details Vulnerabilities
10 OS Linux Linux Kernel 2.6.20 Version Details Vulnerabilities
11 OS Linux Linux Kernel 2.6.21 Version Details Vulnerabilities
12 OS Linux Linux Kernel 2.6.22 Version Details Vulnerabilities
13 OS Linux Linux Kernel 2.6.23 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 13

- References For CVE-2007-6417

http://www.ubuntu.com/usn/usn-574-1
UBUNTU USN-574-1
http://lists.opensuse.org/opensuse-security-announce/2008-02/msg00002.html
SUSE SUSE-SA:2008:006
http://marc.info/?l=linux-kernel&m=119627664702379&w=2
MLIST [linux-kernel] 20071128 [PATCH] tmpfs: restore missing clear_highpage
http://marc.info/?l=linux-kernel&m=119743651829347&w=2
MLIST [linux-kernel] 20071212 Re: [PATCH] tmpfs: restore missing clear_highpage
http://marc.info/?l=linux-kernel&m=119769771026243&w=2
MLIST [linux-kernel] 20071215 Re: [PATCH] tmpfs: restore missing clear_highpage
http://osvdb.org/44120
OSVDB 44120
http://secunia.com/advisories/28141
SECUNIA 28141
http://secunia.com/advisories/28706
SECUNIA 28706
http://secunia.com/advisories/28806
SECUNIA 28806
http://secunia.com/advisories/32023
SECUNIA 32023
http://secunia.com/advisories/28971
SECUNIA 28971
http://www.debian.org/security/2007/dsa-1436
DEBIAN DSA-1436
http://www.mandriva.com/security/advisories?name=MDVSA-2008:086
MANDRIVA MDVSA-2008:086
http://www.mandriva.com/security/advisories?name=MDVSA-2008:112
MANDRIVA MDVSA-2008:112
http://www.redhat.com/support/errata/RHSA-2008-0885.html
REDHAT RHSA-2008:0885
http://www.securityfocus.com/bid/27694
BID 27694 Linux Kernel 'tmpfs' filesystem Local Security Vulnerability Release Date:2008-09-24
http://www.ubuntu.com/usn/usn-578-1
UBUNTU USN-578-1

- Metasploit Modules Related To CVE-2007-6417

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


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