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Vulnerability Details : CVE-2009-0787

The ecryptfs_write_metadata_to_contents function in the eCryptfs functionality in the Linux kernel 2.6.28 before 2.6.28.9 uses an incorrect size when writing kernel memory to an eCryptfs file header, which triggers an out-of-bounds read and allows local users to obtain portions of kernel memory.
Publish Date : 2009-03-24 Last Update Date : 2018-10-10
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- CVSS Scores & Vulnerability Types

CVSS Score
4.9
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
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)
CWE ID 189

- 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-2009-0473.html .
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
1.9
AV:L/AC:M/Au:N/C:P/I:N/A:N 2009-03-20 2009-03-23
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- Related OVAL Definitions

Title Definition Id Class Family
ELSA-2009:0473: kernel security and bug fix update (Important) oval:org.mitre.oval:def:22879 unix
RHSA-2009:0473 -- kernel security and bug fix update (Important) oval:org.mitre.oval:def:29446 unix
RHSA-2009:0473: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20090473 unix
The ecryptfs_write_metadata_to_contents function in the eCryptfs functionality in the Linux kernel 2.6.28 before 2.6.28.... oval:org.mitre.oval:def:11068 unix
VMware kernel ecryptfs_write_metadata_to_contents function vulnerability oval:org.mitre.oval:def:8319 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-2009-0787

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 2.6.28 Version Details Vulnerabilities
2 OS Linux Linux Kernel 2.6.28.1 Version Details Vulnerabilities
3 OS Linux Linux Kernel 2.6.28.2 Version Details Vulnerabilities
4 OS Linux Linux Kernel 2.6.28.3 Version Details Vulnerabilities
5 OS Linux Linux Kernel 2.6.28.4 Version Details Vulnerabilities
6 OS Linux Linux Kernel 2.6.28.5 Version Details Vulnerabilities
7 OS Linux Linux Kernel 2.6.28.6 Version Details Vulnerabilities
8 OS Linux Linux Kernel 2.6.28.7 Version Details Vulnerabilities
9 OS Linux Linux Kernel 2.6.28.8 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 9

- References For CVE-2009-0787

https://exchange.xforce.ibmcloud.com/vulnerabilities/49355
XF linux-kernel-ecryptfs-information-disclosure(49355)
http://www.securityfocus.com/bid/34216
BID 34216 Linux Kernel 'ecryptfs_write_metadata_to_contents()' Information Disclosure Vulnerability Release Date:2009-11-24
http://www.securitytracker.com/id?1022177
SECTRACK 1022177
http://www.vmware.com/security/advisories/VMSA-2009-0016.html CONFIRM
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.9 CONFIRM
http://www.vupen.com/english/advisories/2009/3316
VUPEN ADV-2009-3316
http://www.vupen.com/english/advisories/2009/0802
VUPEN ADV-2009-0802
http://www.securityfocus.com/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://rhn.redhat.com/errata/RHSA-2009-0473.html
REDHAT RHSA-2009:0473
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=8faece5f906725c10e7a1f6caf84452abadbdc7b CONFIRM

- Metasploit Modules Related To CVE-2009-0787

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


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