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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202402-32">
<title>btrbk: Remote Code Execution</title>
<synopsis>A vulnerability has been discovered in btrbk which can lead to remote code execution.</synopsis>
<product type="ebuild">btrbk</product>
<announced>2024-02-26</announced>
<revised count="1">2024-02-26</revised>
<bug>806962</bug>
<access>remote</access>
<affected>
<package name="app-backup/btrbk" auto="yes" arch="*">
<unaffected range="ge">0.31.2</unaffected>
<vulnerable range="lt">0.31.2</vulnerable>
</package>
</affected>
<background>
<p>btrbk is a backup tool for btrfs subvolumes, taking advantage of btrfs specific capabilities to create atomic snapshots and transfer them incrementally to your backup locations.</p>
</background>
<description>
<p>A vulnerability has been discovered in btrbk. Please review the CVE identifier referenced below for details.</p>
</description>
<impact type="normal">
<p>Specialy crafted commands may be executed without being propely checked. Applies to remote hosts filtering ssh commands using ssh_filter_btrbk.sh in authorized_keys.</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All btrbk users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-backup/btrbk-0.31.2"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-38173">CVE-2021-38173</uri>
</references>
<metadata tag="requester" timestamp="2024-02-26T12:53:03.371210Z">graaff</metadata>
<metadata tag="submitter" timestamp="2024-02-26T12:53:03.375893Z">graaff</metadata>
</glsa>
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