Speedtouch USB driver: Privilege escalation vulnerability — GLSA 200411-04

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

Affected packages

Package	net-dialup/speedtouch on all architectures
Affected versions	< 1.3.1
Unaffected versions	>= 1.3.1

Background

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

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

Release date
November 02, 2004

Latest revision
November 02, 2004: 01

Severity
high

Exploitable
local

Bugzilla entries

68436