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Ethereal: Multiple vulnerabilities in protocol dissectors


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200510-25 / Ethereal
Release Date October 30, 2005
Latest Revision October 30, 2005: 01
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-analyzer/ethereal < 0.10.13-r1 >= 0.10.13-r1 All supported architectures

Related bugreports: #109348


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

2.  Impact Information


Ethereal is a feature-rich network protocol analyzer.


There are numerous vulnerabilities in versions of Ethereal prior to 0.10.13, including:

  • The SLIM3 and AgentX dissectors could overflow a buffer (CVE-2005-3243).
  • iDEFENSE discovered a buffer overflow in the SRVLOC dissector (CVE-2005-3184).
  • Multiple potential crashes in many dissectors have been fixed, see References for further details.

Furthermore an infinite loop was discovered in the IRC protocol dissector of the 0.10.13 release (CVE-2005-3313).


An attacker might be able to use 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-0.10.13-r1"

4.  References


Page updated October 30, 2005

Summary: This is a Gentoo Linux Security Advisory

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