TIN: Multiple buffer overflows

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200611-18 / tin
Release Date	November 24, 2006
Latest Revision	November 24, 2006: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-nntp/tin	< 1.8.2	>= 1.8.2	All supported architectures

Related bugreports: #150229

Synopsis

Multiple buffer overflows have been reported in TIN, possibly leading to the execution of arbitrary code.

2. Impact Information

Background

TIN is a threaded NNTP and spool based UseNet newsreader for a variety of platforms.

Description

Urs Janssen and Aleksey Salow have reported multiple buffer overflows in TIN. Additionally, the OpenPKG project has reported an allocation off-by-one flaw which can lead to a buffer overflow.

Impact

An attacker could entice a TIN user to read a specially crafted news article, and execute arbitrary code with the rights of the user running TIN.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All TIN users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-nntp/tin-1.8.2"

4. References

Page updated November 24, 2006

Summary: This is a Gentoo Linux Security Advisory

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