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Gentoo Linux Security Advisory GLSA 200411-04

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                                        http://security.gentoo.org/

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Severity: High
Title: Speedtouch USB driver: Privilege escalation vulnerability
Date: November 02, 2004
Bugs: #68436
ID: 200411-04

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Synopsis

A vulnerability in the Speedtouch USB driver can be exploited to allow
local users to execute arbitrary code with escalated privileges.

Background

The speedtouch package contains a driver for the ADSL SpeedTouch USB
modem.

Affected packages

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 Package                /  Vulnerable  /                Unaffected
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1 net-dialup/speedtouch < 1.3.1 >= 1.3.1

Description

The Speedtouch USB driver contains multiple format string
vulnerabilities in modem_run, pppoa2 and pppoa3. This flaw is due to an
improperly made syslog() system call.

Impact

A malicious local user could exploit this vulnerability by causing a
buffer overflow, and potentially allowing the execution of arbitrary
code with escalated privileges.

Workaround

There is no known workaround at this time.

Resolution

All Speedtouch USB driver users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dialup/speedtouch-1.3.1"

References

[ 1 ] CAN-2004-0834
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0834
[ 2 ] Speedtouch Project News Announcements
http://speedtouch.sourceforge.net/index.php?/news.en.html

Availability

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200411-04.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.

License

Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/1.0