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Diffstat (limited to 'glsa-201701-28.xml')
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diff --git a/glsa-201701-28.xml b/glsa-201701-28.xml new file mode 100644 index 00000000..705cb7c7 --- /dev/null +++ b/glsa-201701-28.xml @@ -0,0 +1,52 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> +<glsa id="201701-28"> + <title>c-ares: Heap-based buffer overflow</title> + <synopsis>A heap-based buffer overflow in c-ares might allow remote attackers + to cause a Denial of Service condition. + </synopsis> + <product type="ebuild">c-ares</product> + <announced>January 11, 2017</announced> + <revised>January 11, 2017: 1</revised> + <bug>595536</bug> + <access>remote</access> + <affected> + <package name="net-dns/c-ares" auto="yes" arch="*"> + <unaffected range="ge">1.12.0</unaffected> + <vulnerable range="lt">1.12.0</vulnerable> + </package> + </affected> + <background> + <p>c-ares is a C library for asynchronous DNS requests (including name + resolves). + </p> + </background> + <description> + <p>A hostname with an escaped trailing dot (such as “hello\.”) would + have its size calculated incorrectly leading to a single byte written + beyond the end of a buffer on the heap. + </p> + </description> + <impact type="normal"> + <p>A remote attacker, able to provide a specially crafted hostname to an + application using c-ares, could potentially cause a Denial of Service + condition. + </p> + </impact> + <workaround> + <p>There is no known workaround at this time.</p> + </workaround> + <resolution> + <p>All c-ares users should upgrade to the latest version:</p> + + <code> + # emerge --sync + # emerge --ask --oneshot --verbose ">=net-dns/c-ares-1.12.0" + </code> + </resolution> + <references> + <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-5180">CVE-2016-5180</uri> + </references> + <metadata tag="requester" timestamp="Mon, 09 Jan 2017 14:14:23 +0000">whissi</metadata> + <metadata tag="submitter" timestamp="Wed, 11 Jan 2017 12:29:54 +0000">whissi</metadata> +</glsa> |