Wireshark: Multiple Denials of Service

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Updated September 25, 2008

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200809-17 / wireshark
Release Date	September 25, 2008
Latest Revision	September 25, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-analyzer/wireshark	< 1.0.3	>= 1.0.3	All supported architectures

Related bugreports: #236515

Synopsis

Multiple Denial of Service vulnerabilities have been discovered in Wireshark.

2. Impact Information

Background

Wireshark is a network protocol analyzer with a graphical front-end.

Description

The following vulnerabilities were reported:

Multiple buffer overflows in the NCP dissector (CVE-2008-3146).
Infinite loop in the NCP dissector (CVE-2008-3932).
Invalid read in the tvb_uncompress() function when processing zlib compressed data (CVE-2008-3933).
Unspecified error when processing Textronix .rf5 files (CVE-2008-3934).

Impact

A remote attacker could exploit these vulnerabilities by sending specially crafted packets on a network being monitored by Wireshark or by enticing a user to read a malformed packet trace file, causing a Denial of Service.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Wireshark users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/wireshark-1.0.3"

4. References