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Diffstat (limited to 'metadata/glsa/glsa-200504-03.xml')
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1 files changed, 68 insertions, 0 deletions
diff --git a/metadata/glsa/glsa-200504-03.xml b/metadata/glsa/glsa-200504-03.xml new file mode 100644 index 000000000000..b34ccf0f47dc --- /dev/null +++ b/metadata/glsa/glsa-200504-03.xml @@ -0,0 +1,68 @@ +<?xml version="1.0" encoding="utf-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="200504-03"> + <title>Dnsmasq: Poisoning and Denial of Service vulnerabilities</title> + <synopsis> + Dnsmasq is vulnerable to DNS cache poisoning attacks and a potential Denial + of Service from the local network. + </synopsis> + <product type="ebuild">Dnsmasq</product> + <announced>2005-04-04</announced> + <revised count="01">2005-04-04</revised> + <bug>86718</bug> + <access>remote</access> + <affected> + <package name="net-dns/dnsmasq" auto="yes" arch="*"> + <unaffected range="ge">2.22</unaffected> + <vulnerable range="lt">2.22</vulnerable> + </package> + </affected> + <background> + <p> + Dnsmasq is a lightweight and easily-configurable DNS forwarder and + DHCP server. + </p> + </background> + <description> + <p> + Dnsmasq does not properly detect that DNS replies received do not + correspond to any DNS query that was sent. Rob Holland of the Gentoo + Linux Security Audit team also discovered two off-by-one buffer + overflows that could crash DHCP lease files parsing. + </p> + </description> + <impact type="low"> + <p> + A remote attacker could send malicious answers to insert arbitrary + DNS data into the Dnsmasq cache. These attacks would in turn help an + attacker to perform man-in-the-middle and site impersonation attacks. + The buffer overflows might allow an attacker on the local network to + crash Dnsmasq upon restart. + </p> + </impact> + <workaround> + <p> + There is no known workaround at this time. + </p> + </workaround> + <resolution> + <p> + All Dnsmasq users should upgrade to the latest version: + </p> + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.22"</code> + </resolution> + <references> + <uri link="http://www.thekelleys.org.uk/dnsmasq/CHANGELOG">Dnsmasq Changelog</uri> + </references> + <metadata tag="requester" timestamp="2005-03-28T07:00:46Z"> + jaervosz + </metadata> + <metadata tag="submitter" timestamp="2005-03-28T13:54:22Z"> + koon + </metadata> + <metadata tag="bugReady" timestamp="2005-04-04T11:10:45Z"> + koon + </metadata> +</glsa> |