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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202107-03">
<title>libqb: Insecure temporary file</title>
<synopsis>An insecure temporary file usage has been reported in libqb
possibly allowing local code execution.
</synopsis>
<product type="ebuild">libqb</product>
<announced>2021-07-03</announced>
<revised count="1">2021-07-03</revised>
<bug>699860</bug>
<access>local</access>
<affected>
<package name="sys-cluster/libqb" auto="yes" arch="*">
<unaffected range="ge">1.0.5</unaffected>
<vulnerable range="lt">1.0.5</vulnerable>
</package>
</affected>
<background>
<p>libqb is a library with the primary purpose of providing
high-performance, reusable features for client-server architecture, such
as logging, tracing, inter-process communication (IPC), and polling.
</p>
</background>
<description>
<p>It was discovered that libqb used predictable filenames (under /dev/shm
and /tmp) without O_EXCL.
</p>
</description>
<impact type="high">
<p>A local attacker could perform symlink attacks to overwrite arbitrary
files with the privileges of the user running the application linked
against libqb.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All libqb users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-cluster/libqb-1.0.5"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2019-12779">CVE-2019-12779</uri>
</references>
<metadata tag="requester" timestamp="2021-05-26T21:28:24Z">whissi</metadata>
<metadata tag="submitter" timestamp="2021-07-03T03:11:34Z">whissi</metadata>
</glsa>
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