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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200707-14">
<title>tcpdump: Integer overflow</title>
A vulnerability has been discovered in tcpdump, allowing for the execution
of arbitrary code, possibly with root privileges.
<product type="ebuild">tcpdump</product>
<announced>July 28, 2007</announced>
<revised>July 28, 2007: 01</revised>
<package name="net-analyzer/tcpdump" auto="yes" arch="*">
<unaffected range="ge">3.9.5-r3</unaffected>
<vulnerable range="lt">3.9.5-r3</vulnerable>
tcpdump is a tool for capturing and inspecting network traffic.
mu-b from Digital Labs discovered that the return value of a snprintf()
call is not properly checked before being used. This could lead to an
integer overflow.
<impact type="high">
A remote attacker could send specially crafted BGP packets on a network
being monitored with tcpdump, possibly resulting in the execution of
arbitrary code with the privileges of the user running tcpdump, which
is usually root.
There is no known workaround at this time.
All tcpdump users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-analyzer/tcpdump-3.9.5-r3&quot;</code>
<uri link="">CVE-2007-3798</uri>
<metadata tag="requester" timestamp="Sat, 14 Jul 2007 22:01:53 +0000">
<metadata tag="submitter" timestamp="Tue, 17 Jul 2007 18:00:19 +0000">
<metadata tag="bugReady" timestamp="Tue, 17 Jul 2007 18:48:59 +0000">