Ethereal: Multiple security problems
Gentoo Linux Security Advisory
||GLSA 200407-08 / Ethereal
||July 09, 2004
||May 22, 2006: 02
All supported architectures
Multiple vulnerabilities including one buffer overflow exist in Ethereal,
which may allow an attacker to run arbitrary code or crash the program.
Ethereal is a feature rich network protocol analyzer.
There are multiple vulnerabilities in versions of Ethereal earlier than
- In some cases the iSNS dissector could cause Ethereal to
- If there was no policy name for a handle for SMB SID snooping it
could cause a crash.
- A malformed or missing community string could cause the SNMP
dissector to crash.
An attacker could use these vulnerabilities to crash Ethereal 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. For SMB you can disable SID snooping in the SMB
protocol preference. However, it is strongly recommended to upgrade to
the latest stable version.
All Ethereal users should upgrade to the latest stable version:
Code Listing 3.1: Resolution
# emerge sync
# emerge -pv ">=net-analyzer/ethereal-0.10.5"
# emerge ">=net-analyzer/ethereal-0.10.5"