National Vulnerability Database (NVD) National Vulnerability Database (CVE-2009-0787)

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NVD contains:

CVE Vulnerabilities: 56457
Checklists: 221
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OVAL Queries: 8140
CPE Names: 73311

Last updated: Sat May 25 04:20:00 EDT 2013

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NIST Security Configuration Checklists - CSD

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Vulnerability Summary for CVE-2009-0787

Original release date:03/25/2009

Last revised:03/22/2012

Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:C/I:N/A:N) (legend)

Impact Subscore: 6.9

Exploitability Subscore: 3.9

CVSS Version 2 Metrics:

Access Vector: Locally exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows unauthorized disclosure of information

Vendor Statements (disclaimer)

Official Statement from Red Hat (05/19/2009)

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 .

References to Advisories, Solutions, and Tools

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External Source: BID

Name: 34216

Type: Patch Information

Hyperlink:http://www.securityfocus.com/bid/34216

External Source: XF

Name: linux-kernel-ecryptfs-information-disclosure(49355)

Hyperlink:http://xforce.iss.net/xforce/xfdb/49355

External Source: VUPEN

Name: ADV-2009-3316

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

External Source: VUPEN

Name: ADV-2009-0802