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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200704-20">
<title>NAS: Multiple vulnerabilities</title>
The Network Audio System is vulnerable to a buffer overflow that could
result in the execution of arbitrary code with root privileges.
<product type="ebuild">NAS</product>
<announced>April 23, 2007</announced>
<revised>April 23, 2007: 01</revised>
<package name="media-libs/nas" auto="yes" arch="*">
<unaffected range="ge">1.8b</unaffected>
<vulnerable range="lt">1.8b</vulnerable>
NAS is a network transparent, client/server audio transport system.
Luigi Auriemma has discovered multiple vulnerabilities in NAS, some of
which include a buffer overflow in the function accept_att_local(), an
integer overflow in the function ProcAuWriteElement(), and a null
pointer error in the function ReadRequestFromClient().
<impact type="high">
An attacker having access to the NAS daemon could send an overly long
slave name to the server, leading to the execution of arbitrary code
with root privileges. A remote attacker could also send a specially
crafted packet containing an invalid client ID, which would crash the
server and result in a Denial of Service.
There is no known workaround at this time.
All NAS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=media-libs/nas-1.8b&quot;</code>
<uri link="">CVE-2007-1543</uri>
<uri link="">CVE-2007-1544</uri>
<uri link="">CVE-2007-1545</uri>
<uri link="">CVE-2007-1546</uri>
<uri link="">CVE-2007-1547</uri>
<metadata tag="requester" timestamp="Mon, 02 Apr 2007 13:48:29 +0000">
<metadata tag="submitter" timestamp="Mon, 02 Apr 2007 15:19:59 +0000">
<metadata tag="bugReady" timestamp="Thu, 12 Apr 2007 14:16:06 +0000">