National Vulnerability Database (NVD) National Vulnerability Database (CVE-2009-1046)

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NVD contains:

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Last updated: Tue Aug 25 11:15:08 EDT 2009

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Vulnerability Summary for CVE-2009-1046

Original release date:03/23/2009

Last revised:05/23/2009

Source: US-CERT/NIST

Overview

The console selection feature in the Linux kernel 2.6.28 before 2.6.28.4, 2.6.25, and possibly earlier versions, when the UTF-8 console is used, allows physically proximate attackers to cause a denial of service (memory corruption) by selecting a small number of 3-byte UTF-8 characters, which triggers an "an off-by-two memory error." NOTE: it is not clear whether this issue crosses privilege boundaries.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:4.7 (MEDIUM) (AV:L/AC:M/Au:N/C:N/I:N/A:C) (legend)

Impact Subscore: 6.9

Exploitability Subscore: 3.4

CVSS Version 2 Metrics:

Access Vector: Locally exploitable

Access Complexity: Medium

Authentication: Not required to exploit

Impact Type:Allows disruption of serviceUnknown

Vendor Statments (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 5. It was addressed in Red Hat Enterprise MRG via: https://rhn.redhat.com/errata/RHSA-2009-0451.html .

References to Advisories, Solutions, and Tools

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External Source: BID

Name: 33672

Type: Patch Information

Hyperlink:http://www.securityfocus.com/bid/33672

External Source: MLIST

Name: [linux-kernel] 20090202 Re: [PATCH] Fix memory corruption in console selection

Type: Patch Information

Hyperlink:http://lists.openwall.net/linux-kernel/2009/02/02/364

External Source: MLIST

Name: [linux-kernel] 20090130 [PATCH] Fix memory corruption in console selection

Type: Patch Information

Hyperlink:http://lists.openwall.net/linux-kernel/2009/01/30/333