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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202107-15">
<title>blktrace: Buffer overflow</title>
<synopsis>A buffer overflow in blktrace might allow arbitrary code execution.</synopsis>
<product type="ebuild">blktrace</product>
<announced>2021-07-08</announced>
<revised count="1">2021-07-08</revised>
<bug>655146</bug>
<access>local, remote</access>
<affected>
<package name="sys-block/blktrace" auto="yes" arch="*">
<unaffected range="ge">1.2.0_p20210419122502</unaffected>
<vulnerable range="lt">1.2.0_p20210419122502</vulnerable>
</package>
</affected>
<background>
<p>blktrace shows detailed information about what is happening on a block
device IO queue.
</p>
</background>
<description>
<p>A crafted file could cause a buffer overflow in the ‘dev_map_read’
function because the device and devno arrays are too small.
</p>
</description>
<impact type="normal">
<p>A remote attacker could entice a user to open a specially crafted file
using blktrace, possibly resulting in execution of arbitrary code with
the privileges of the process or a Denial of Service condition.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All blktrace users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose
">=sys-block/blktrace-1.2.0_p20210419122502"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2018-10689">CVE-2018-10689</uri>
</references>
<metadata tag="requester" timestamp="2021-07-06T00:11:19Z">ajak</metadata>
<metadata tag="submitter" timestamp="2021-07-08T03:29:36Z">ajak</metadata>
</glsa>
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