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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200512-06] Ethereal: Buffer overflow in OSPF protocol dissector

Vulnerability Assessment Details

[GLSA-200512-06] Ethereal: Buffer overflow in OSPF protocol dissector

Vulnerability Assessment Summary
Ethereal: Buffer overflow in OSPF protocol dissector

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200512-06
(Ethereal: Buffer overflow in OSPF protocol dissector)

iDEFENSE reported a possible overflow due to the lack of bounds
checking in the dissect_ospf_v3_address_prefix() function, part of the
OSPF protocol dissector.

Impact

A possible hacker might be able to craft a malicious network flow that
would crash Ethereal. It may be possible, though unlikely, to exploit
this flaw to execute arbitrary code with the permissions of the user
running Ethereal, which could be the root user.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3651
http://www.idefense.com/application/poi/display?id=349&type=vulnerabilities

Solution:
All Ethereal users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/ethereal-0.10.13-r2"

Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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