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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202011-01">
<title>BlueZ: Arbitrary code execution</title>
<synopsis>A vulnerability in BlueZ might allow remote attackers to execute
arbitrary code.
</synopsis>
<product type="ebuild">bluez</product>
<announced>2020-11-03</announced>
<revised count="1">2020-11-03</revised>
<bug>749285</bug>
<access>remote</access>
<affected>
<package name="net-wireless/bluez" auto="yes" arch="*">
<unaffected range="ge">5.55</unaffected>
<vulnerable range="lt">5.55</vulnerable>
</package>
</affected>
<background>
<p>Set of tools to manage Bluetooth devices for Linux.</p>
</background>
<description>
<p>It was discovered that there was a double-free vulnerability in Bluez
after the service discovery which occurs after a Bluetoth Low Energy
(BLE) connection has been established to a device.
</p>
</description>
<impact type="normal">
<p>A remote attacker, by enticing a user to connect to a malicious GATT
server or device, could cause the execution of arbitrary code with the
privileges of the user running gatttool client or cause a Denial of
Service condition.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All BlueZ users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-wireless/bluez-5.55"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-27153">CVE-2020-27153</uri>
</references>
<metadata tag="requester" timestamp="2020-10-20T10:51:04Z">sam_c</metadata>
<metadata tag="submitter" timestamp="2020-11-03T00:32:28Z">sam_c</metadata>
</glsa>
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