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Ethereal: Multiple vulnerabilities in protocol dissectors


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200604-17 / Ethereal
Release Date April 27, 2006
Latest Revision April 27, 2006: 01
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-analyzer/ethereal < 0.99.0 >= 0.99.0 All supported architectures

Related bugreports: #130505


Ethereal is vulnerable to numerous vulnerabilities, potentially resulting in the execution of arbitrary code.

2.  Impact Information


Ethereal is a feature-rich network protocol analyzer.


Coverity discovered numerous vulnerabilities in versions of Ethereal prior to 0.99.0, including:

  • buffer overflows in the ALCAP (CVE-2006-1934), COPS (CVE-2006-1935) and telnet (CVE-2006-1936) dissectors.
  • buffer overflows in the NetXray/Windows Sniffer and Network Instruments file code (CVE-2006-1934).

For further details please consult the references below.


An attacker might be able to exploit these vulnerabilities to crash Ethereal or execute arbitrary code with the permissions of the user running Ethereal, which could be the root user.

3.  Resolution Information


There is no known workaround at this time.


All Ethereal users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/ethereal-0.99.0"

4.  References


Page updated April 27, 2006

Summary: This is a Gentoo Linux Security Advisory

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