[ GLSA 200411-04 ] Speedtouch USB driver: Privilege escalation

[Luke Macken]

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

Background
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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 >=3D 1.3.1

Description
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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
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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
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There is no known workaround at this time.

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dnet-dialup/speedtouch-1.3.1"

References
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[ 1 ] CAN-2004-0834
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCAN-2004-0834
[ 2 ] Speedtouch Project News Announcements
http://speedtouch.sourceforge.net/index.php?/news.en.html

Availability
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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?
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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
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
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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

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