BitchX Remote Cluster() Heap Corruption Vulnerability

BID:7096

Info

BitchX Remote Cluster() Heap Corruption Vulnerability

Bugtraq ID: 7096
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: No
Published: Mar 14 2003 12:00AM
Updated: Mar 14 2003 12:00AM
Credit: The discovery of this vulnerability has been credited to Timo Sirainen <[email protected]>.
Vulnerable: BitchX IRC Client 1.0 c19
+ Slackware Linux 9.0
+ Slackware Linux 8.1
BitchX IRC Client 1.0 c16
Not Vulnerable:

Discussion

BitchX Remote Cluster() Heap Corruption Vulnerability

BitchX has been reported prone to a heap based memory corruption vulnerability. Reportedly when an excessively long hostname is supplied to a specific BitchX function an internal memory buffer is overflowed. This action may cause adjacent heap based memory to be corrupted with attacker-supplied values.

There is a potential that this issue could be exploited to corrupt memory managment information. As a result, a hostile IRC server may be capable of executing arbitrary code on a target client.

This vulnerability was reported to affect BitchX 1.0c19 earlier versions may also be affected.

Solution / Fix

BitchX Remote Cluster() Heap Corruption Vulnerability

Solution:
Slackware has released an advisory (SSA:2003-141-02) and fixes. Information about obtaining and applying fixes are available in the referenced advisory.

Debian has released an advisory (DSA 306-1). Information about obtaining and applying fixes are available in the referenced advisory.

Gentoo has released bitchx-1.0.19-r5 which addresses this issue. Users are advised to upgrade by performing the following commands:

emerge sync
emerge bitchx
emerge clean

An unofficial and untested patch has been released by [email protected].

It has been reported that these issues have been addressed in the current cvs tree.


BitchX IRC Client 1.0 c19

BitchX IRC Client 1.0 c16

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