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diff --git a/glsa-200909-19.xml b/glsa-200909-19.xml new file mode 100644 index 00000000..96207670 --- /dev/null +++ b/glsa-200909-19.xml @@ -0,0 +1,78 @@ +<?xml version="1.0" encoding="utf-8"?> +<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> +<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> + +<glsa id="200909-19"> + <title>Dnsmasq: Multiple vulnerabilities</title> + <synopsis> + Multiple vulnerabilities in Dnsmasq might result in the remote execution of + arbitrary code, or a Denial of Service. + </synopsis> + <product type="ebuild">dnsmasq</product> + <announced>September 20, 2009</announced> + <revised>September 20, 2009: 01</revised> + <bug>282653</bug> + <access>remote</access> + <affected> + <package name="net-dns/dnsmasq" auto="yes" arch="*"> + <unaffected range="ge">2.5.0</unaffected> + <vulnerable range="lt">2.5.0</vulnerable> + </package> + </affected> + <background> + <p> + Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP + server. It includes support for Trivial FTP (TFTP). + </p> + </background> + <description> + <p> + Multiple vulnerabilities have been reported in the TFTP functionality + included in Dnsmasq: + </p> + <ul> + <li>Pablo Jorge and Alberto Solino + discovered a heap-based buffer overflow (CVE-2009-2957).</li> + <li>An + anonymous researcher reported a NULL pointer reference + (CVE-2009-2958).</li> + </ul> + </description> + <impact type="normal"> + <p> + A remote attacker in the local network could exploit these + vulnerabilities by sending specially crafted TFTP requests to a machine + running Dnsmasq, possibly resulting in the remote execution of + arbitrary code with the privileges of the user running the daemon, or a + Denial of Service. NOTE: The TFTP server is not enabled by default. + </p> + </impact> + <workaround> + <p> + You can disable the TFTP server either at buildtime by not enabling the + "tftp" USE flag, or at runtime. Make sure "--enable-tftp" is not set in + the DNSMASQ_OPTS variable in the /etc/conf.d/dnsmasq file and + "enable-tftp" is not set in /etc/dnsmasq.conf, either of which would + enable TFTP support if it is compiled in. + </p> + </workaround> + <resolution> + <p> + All Dnsmasq users should upgrade to the latest version: + </p> + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.5.0"</code> + </resolution> + <references> + <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2957">CVE-2009-2957</uri> + <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2958">CVE-2009-2958</uri> + </references> + <metadata tag="submitter" timestamp="Tue, 01 Sep 2009 10:28:12 +0000"> + a3li + </metadata> + <metadata tag="bugReady" timestamp="Sun, 20 Sep 2009 18:56:49 +0000"> + a3li + </metadata> +</glsa> |