National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2008-3896 Detail

Description

Grub Legacy 0.97 and earlier stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer before and after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer.

Source:  MITRE
Description Last Modified:  09/03/2008

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 2.1 LOW
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

Vendor Statements (disclaimer)

Official Statement from Red Hat (01/29/2009)

Red Hat does not consider this to be a security issue. Since these operations can only be executed by root, no trust boundary is crossed as a result of this behaviour.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://securityreason.com/securityalert/4204
http://securityreason.com/securityalert/4206
http://www.ivizsecurity.com/preboot-patch.html
http://www.ivizsecurity.com/research/preboot/preboot_whitepaper.pdf
http://www.securityfocus.com/archive/1/archive/1/495726/100/0/threaded

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2008-3896
NVD Published Date:
09/03/2008
NVD Last Modified:
01/29/2009