70 lines
2.4 KiB
XML
70 lines
2.4 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200409-16">
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<title>Samba: Denial of Service vulnerabilities</title>
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<synopsis>
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Two Denial of Service vulnerabilities have been found and fixed in Samba.
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</synopsis>
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<product type="ebuild">Samba</product>
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<announced>September 13, 2004</announced>
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<revised>September 13, 2004: 01</revised>
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<access>remote</access>
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<affected>
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<package name="net-fs/samba" auto="yes" arch="*">
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<unaffected range="ge">3.0.7</unaffected>
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<unaffected range="lt">3.0</unaffected>
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<vulnerable range="lt">3.0.7</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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Samba is a freely available SMB/CIFS implementation which allows seamless
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interoperability of file and print services to other SMB/CIFS clients. smbd
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and nmbd are two daemons used by the Samba server.
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</p>
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</background>
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<description>
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<p>
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There is a defect in smbd's ASN.1 parsing. A bad packet received during the
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authentication request could throw newly-spawned smbd processes into an
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infinite loop (CAN-2004-0807). Another defect was found in nmbd's
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processing of mailslot packets, where a bad NetBIOS request could crash the
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nmbd process (CAN-2004-0808).
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</p>
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</description>
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<impact type="normal">
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<p>
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A remote attacker could send specially crafted packets to trigger both
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defects. The ASN.1 parsing issue can be exploited to exhaust all available
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memory on the Samba host, potentially denying all service to that server.
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The nmbd issue can be exploited to crash the nmbd process, resulting in a
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Denial of Service condition on the Samba server.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All Samba 3.x users should upgrade to the latest version:
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</p>
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<code>
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# emerge sync
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# emerge -pv ">=net-fs/samba-3.0.7"
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# emerge ">=net-fs/samba-3.0.7"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0807">CAN-2004-0807</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0808">CAN-2004-0808</uri>
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</references>
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<metadata tag="submitter" timestamp="Sat, 11 Sep 2004 15:16:21 +0000">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="Mon, 13 Sep 2004 12:15:40 +0000">
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jaervosz
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</metadata>
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</glsa>
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