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[ GLSA 200704-23 ] capi4k-utils: Buffer overflow
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PostPosted: Fri Apr 27, 2007 10:26 pm    Post subject: [ GLSA 200704-23 ] capi4k-utils: Buffer overflow Reply with quote

Gentoo Linux Security Advisory

Title: capi4k-utils: Buffer overflow (GLSA 200704-23)
Severity: high
Exploitable: local
Date: April 27, 2007
Bug(s): #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: net-dialup/capi4k-utils
Vulnerable: < 20050718-r3
Unaffected: >= 20050718-r3
Architectures: 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:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dialup/capi4k-utils-20050718-r3"


References

CVE-2007-1217
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