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Vulnerability Details : CVE-2009-0745

The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not properly initialize the group descriptor during a resize (aka resize2fs) operation, which might allow local users to cause a denial of service (OOPS) by arranging for crafted values to be present in available memory.
Publish Date : 2009-02-27 Last Update Date : 2013-01-22
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- CVSS Scores & Vulnerability Types

CVSS Score
4.9
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
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 None
Vulnerability Type(s) Denial Of Service
CWE ID 20

- 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. This issue was addressed in Red Hat Enterprise Linux 5 by https://rhn.redhat.com/errata/RHSA-2009-1243.html
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low
4.9
AV:L/AC:L/Au:N/C:N/I:N/A:C 2009-03-01 2009-01-11
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- Related OVAL Definitions

Title Definition Id Class Family
DSA-1749 linux-2.6 -- denial of service/privilege escalation/sensitive memory leak oval:org.mitre.oval:def:8381 unix
DSA-1749-1 linux-2.6 -- denial of service/privilege escalation/sensitive memory leak oval:org.mitre.oval:def:13503 unix
DSA-1787-1 linux-2.6.24 -- denial of service/privilege escalation/information leak oval:org.mitre.oval:def:13537 unix
ELSA-2009:1243: Oracle Linux 5.x.4 kernel security and bug fix update (Important) oval:org.mitre.oval:def:21973 unix
RHSA-2009:1243: Red Hat Enterprise Linux 5.4 kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20091243 unix
The ext4_group_add function in fs/ext4/resize.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 d... oval:org.mitre.oval:def:10942 unix
VMware kernel ext4_group_add function vulnerability oval:org.mitre.oval:def:7765 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-2009-0745

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 2.6.27 Version Details Vulnerabilities
2 OS Linux Linux Kernel 2.6.27.1 Version Details Vulnerabilities
3 OS Linux Linux Kernel 2.6.27.2 Version Details Vulnerabilities
4 OS Linux Linux Kernel 2.6.27.3 Version Details Vulnerabilities
5 OS Linux Linux Kernel 2.6.27.4 Version Details Vulnerabilities
6 OS Linux Linux Kernel 2.6.27.5 Version Details Vulnerabilities
7 OS Linux Linux Kernel 2.6.27.6 Version Details Vulnerabilities
8 OS Linux Linux Kernel 2.6.27.7 Version Details Vulnerabilities
9 OS Linux Linux Kernel 2.6.27.8 Version Details Vulnerabilities
10 OS Linux Linux Kernel 2.6.27.9 Version Details Vulnerabilities
11 OS Linux Linux Kernel 2.6.27.10 Version Details Vulnerabilities
12 OS Linux Linux Kernel 2.6.27.11 Version Details Vulnerabilities
13 OS Linux Linux Kernel 2.6.27.12 Version Details Vulnerabilities
14 OS Linux Linux Kernel 2.6.27.13 Version Details Vulnerabilities
15 OS Linux Linux Kernel 2.6.27.14 Version Details Vulnerabilities
16 OS Linux Linux Kernel 2.6.27.15 Version Details Vulnerabilities
17 OS Linux Linux Kernel 2.6.27.16 Version Details Vulnerabilities
18 OS Linux Linux Kernel 2.6.27.17 Version Details Vulnerabilities
19 OS Linux Linux Kernel 2.6.27.18 Version Details Vulnerabilities
20 OS Linux Linux Kernel 2.6.28 Version Details Vulnerabilities
21 OS Linux Linux Kernel 2.6.28.1 Version Details Vulnerabilities
22 OS Linux Linux Kernel 2.6.28.2 Version Details Vulnerabilities
23 OS Linux Linux Kernel 2.6.28.3 Version Details Vulnerabilities
24 OS Linux Linux Kernel 2.6.28.4 Version Details Vulnerabilities
25 OS Linux Linux Kernel 2.6.28.5 Version Details Vulnerabilities
26 OS Linux Linux Kernel 2.6.28.6 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 26

- References For CVE-2009-0745

http://www.vmware.com/security/advisories/VMSA-2009-0016.html CONFIRM
http://www.vupen.com/english/advisories/2009/0509
VUPEN ADV-2009-0509
http://bugzilla.kernel.org/show_bug.cgi?id=12433 CONFIRM
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19 CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fdff73f094e7220602cc3f8959c7230517976412 CONFIRM
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7 CONFIRM
http://rhn.redhat.com/errata/RHSA-2009-1243.html
REDHAT RHSA-2009:1243
http://secunia.com/advisories/34394
SECUNIA 34394
http://secunia.com/advisories/34981
SECUNIA 34981
http://www.debian.org/security/2009/dsa-1787
DEBIAN DSA-1787
http://www.debian.org/security/2009/dsa-1749
DEBIAN DSA-1749
http://secunia.com/advisories/37471
SECUNIA 37471
http://secunia.com/advisories/36562
SECUNIA 36562
http://www.securityfocus.com/archive/1/archive/1/507985/100/0/threaded
BUGTRAQ 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components
http://www.ubuntu.com/usn/usn-751-1
UBUNTU USN-751-1
http://www.vupen.com/english/advisories/2009/3316
VUPEN ADV-2009-3316

- Metasploit Modules Related To CVE-2009-0745

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


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