summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat (limited to 'metadata/glsa/glsa-200504-03.xml')
-rw-r--r--metadata/glsa/glsa-200504-03.xml68
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 "&gt;=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>