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Linux kernel USB drivers do not initialize kernel memory properly

Vulnerability Note VU#981134

Original Release Date: 2004-10-22 | Last Revised: 2004-10-25

Overview

Various Linux USB drivers contain an information disclosure vulnerability that may expose sensitive segments of kernel memory to users.

Description

USB drivers for several versions the Linux kernel do not properly initialize kernel memory before using it. When an affected USB driver copies uninitialized memory from kernel space to user space (with the copy_to_user function), the previous kernel memory contents will be copied as well. In some cases, this will grant a user inappropriate access to sensitive segments of kernel memory.

Impact

Users may be able to view sensitive segments of kernel memory.

Solution

Check with Vendor

Users who suspect they are vulnerable are encouraged to check with their vendor to determine the appropriate action to take.

Upgrade to Unaffected Build of the Linux Kernel

Users are encouraged to upgrade to an unaffected build of the Linux kernel.

Vendor Information

981134
Expand all

Gentoo Linux

Updated:  August 30, 2004

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

SuSE Inc.

Notified:  October 22, 2004 Updated:  October 25, 2004

Status

  Vulnerable

Vendor Statement

According to SusE "We will release updates for those bugs together with one of our next kernel security updates".

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Ingrian Networks

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Not Vulnerable

Vendor Statement

Ingrian Networks products are not vulnerable to this issue as they do not contain USB drivers.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Connectiva

Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Debian

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Engarde

Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Hewlett-Packard Company

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

IBM eServer

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

IBM-zSeries

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Immunix

Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

MandrakeSoft

Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

MontaVista Software

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Novell

Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Openwall GNU/*/Linux

Notified:  October 22, 2004 Updated:  October 25, 2004

Status

  Unknown

Vendor Statement

The default Linux kernel image on Openwall GNU/*/Linux (Owl) 1.1 CDs is not affected by this issue since USB support is not compiled in. Custom kernel builds, however, could be affected, depending on options used. This has been corrected in Owl-current and Owl 1.1-stable on August 15, 2004 with the update to Linux 2.4.27-ow1. More importantly, his update also corrects a number of other Linux kernels vulnerabilities which have similar prerequisites and impact (e.g., CVE CAN-2004-0415).

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Red Hat Inc.

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

SCO

Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Sequent

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Sun Microsystems Inc.

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

TurboLinux

Notified:  October 22, 2004 Updated:  October 22, 2004

Status

  Unknown

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A

References

Credit

This vulnerability was reported by Tim Yamin.

This document was written by Jeff Gennari.

Other Information

CVE IDs: CVE-2004-0685
Severity Metric: 0.48
Date Public: 2004-08-25
Date First Published: 2004-10-22
Date Last Updated: 2004-10-25 15:05 UTC
Document Revision: 151

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