Ethereal: Multiple vulnerabilities

Ethereal: Multiple vulnerabilities Multiple vulnerabilities exist in Ethereal, which may allow an attacker to run arbitrary code, crash the program or perform DoS by CPU and disk utilization. ethereal January 20, 2005 January 20, 2005: 01 78559 remote 0.10.9 0.10.9

Ethereal is a feature rich network protocol analyzer.

There are multiple vulnerabilities in versions of Ethereal earlier than 0.10.9, including:

The COPS dissector could go into an infinite loop (CAN-2005-0006).
The DLSw dissector could cause an assertion, making Ethereal exit prematurely (CAN-2005-0007).
The DNP dissector could cause memory corruption (CAN-2005-0008).
The Gnutella dissector could cause an assertion, making Ethereal exit prematurely (CAN-2005-0009).
The MMSE dissector could free statically-allocated memory (CAN-2005-0010).
The X11 dissector is vulnerable to a string buffer overflow (CAN-2005-0084).

An attacker might be able to use these vulnerabilities to crash Ethereal, perform DoS by CPU and disk space utilization or even execute arbitrary code with the permissions of the user running Ethereal, which could be the root user.

For a temporary workaround you can disable all affected protocol dissectors by selecting Analyze->Enabled Protocols... and deselecting them from the list. However, it is strongly recommended to upgrade to the latest stable version.

All Ethereal users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-analyzer/ethereal-0.10.9"

CAN-2005-0006 CAN-2005-0007 CAN-2005-0008 CAN-2005-0009 CAN-2005-0010 CAN-2005-0084 Ethereal Release Notes lewk lewk