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Diffstat (limited to 'metadata/glsa/glsa-202105-20.xml')
-rw-r--r-- | metadata/glsa/glsa-202105-20.xml | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/metadata/glsa/glsa-202105-20.xml b/metadata/glsa/glsa-202105-20.xml new file mode 100644 index 000000000000..359b42aa3759 --- /dev/null +++ b/metadata/glsa/glsa-202105-20.xml @@ -0,0 +1,54 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="202105-20"> + <title>Dnsmasq: DNS cache poisoning</title> + <synopsis>Use of insufficient randomness in Dnsmasq might lead to DNS Cache + Poisoning. + </synopsis> + <product type="ebuild">dnsmasq</product> + <announced>2021-05-26</announced> + <revised count="1">2021-05-26</revised> + <bug>782130</bug> + <access>local, remote</access> + <affected> + <package name="net-dns/dnsmasq" auto="yes" arch="*"> + <unaffected range="ge">2.85</unaffected> + <vulnerable range="lt">2.85</vulnerable> + </package> + </affected> + <background> + <p>Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP + server. + </p> + </background> + <description> + <p>It was discovered that Dnsmasq, when configured with + --server=<address>@<interface> or similar (e.g. through dbus), + configured a fixed UDP port for all outgoing queries to the specified + upstream DNS server. + </interface> + </p> + </description> + <impact type="low"> + <p>An attacker, by sending malicious crafted DNS responses, could perform a + DNS Cache Poisoning attack. + </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-2.85" + </code> + + </resolution> + <references> + <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-3448">CVE-2021-3448</uri> + </references> + <metadata tag="requester" timestamp="2021-05-25T13:34:22Z">whissi</metadata> + <metadata tag="submitter" timestamp="2021-05-26T08:39:11Z">whissi</metadata> +</glsa> |