GLSA 200704-23: capi4k-utils: Buffer overflow

http://security.gentoo.org/

Severity:	high
Title:	capi4k-utils: Buffer overflow
Date:	04/27/2007
Bugs:	#170870
ID:	200704-23

Synopsis

capi4k-utils is vulnerable to a buffer overflow in the bufprint() function.

Background

capi4k-utils is a set of utilities for accessing COMMON-ISDN-API software interfaces for ISDN devices.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-dialup/capi4k-utils	< 20050718-r3	>= 20050718-r3	All supported architectures

Description

The bufprint() function in capi4k-utils fails to properly check boundaries of data coming from CAPI packets.

Impact

A local attacker could possibly escalate privileges or cause a Denial of Service by sending a crafted CAPI packet.

Workaround

There is no known workaround at this time.

Resolution

All capi4k-utils users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-dialup/capi4k-utils-20050718-r3"

References

CVE-2007-1217

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200704-23.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 security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.