Wireshark: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200708-12 / wireshark
Release Date	August 16, 2007
Latest Revision	August 16, 2007: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-analyzer/wireshark	< 0.99.6	>= 0.99.6	All supported architectures

Related bugreports: #183520

Synopsis

Multiple vulnerabilities have been discovered in Wireshark, allowing for the remote execution of arbitrary code and a Denial of Service.

2. Impact Information

Background

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

Description

Wireshark doesn't properly handle chunked encoding in HTTP responses (CVE-2007-3389), iSeries capture files (CVE-2007-3390), certain types of DCP ETSI packets (CVE-2007-3391), and SSL or MMS packets (CVE-2007-3392). An off-by-one error has been discovered in the DHCP/BOOTP dissector when handling DHCP-over-DOCSIS packets (CVE-2007-3393).

Impact

A remote attacker could send specially crafted packets on a network being monitored with Wireshark, possibly resulting in the execution of arbitrary code with the privileges of the user running Wireshark which might be the root user, or a Denial of Service.

3. Resolution Information

Workaround

In order to prevent root compromise, take network captures with tcpdump and analyze them running Wireshark as a least privileged user.

Resolution

All Wireshark users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/wireshark-0.99.6"

4. References

Updated August 16, 2007

Summary: This is a Gentoo Linux Security Advisory

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