advisories/nc-sa-2020-034.php


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    <h1>Security Advisory</h1>
    <a href="/security/advisories/">Back to advisories</a>
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        <h2>Memory Leak in OCUtil.dll library in Desktop client can lead to DoS (NC-SA-2020-034)</h2>
        <p>10th July 2020</p>
        <p>Risk level: <strong>Low</strong></p>
        <p>CVSS v3 Base Score: 5.9 (<a href="https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H">AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H</a>)</p>
        <p>CWE: <a href="https://cwe.mitre.org/data/definitions/400.html">Denial of Service (CWE-400)</a></p>
        <p>HackerOne report: <a href="https://hackerone.com/reports/588562">588562</a></p>
        <h3>Description</h3>
        <p>A memory leak in the OCUtil.dll library used by Nextcloud Desktop Client 2.6.4 can lead to a DoS against the host system.</p>
        <h3>Affected Software</h3>
        <ul>
            <li>Nextcloud Desktop &lt; <strong>2.6.5</strong> (CVE-2020-8229)</li>

        </ul>
        <h3>Action Taken</h3>
        <p>The error has been fixed.</p>
        <h3>Resolution</h3>
        <p>It is recommended that the Nextcloud Desktop Client is upgraded to 2.6.5.</p>
        <h3>Acknowledgements</h3>
        <p>The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:</p>
        <ul>
            <li>Cosmin Craciun - Finastra (cwaverst@gmail.com) - Vulnerability discovery and disclosure.</li>
        </ul>
        <br/>
        <small style="color:grey">This advisory is licensed <a href="https://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA 4.0</a>.</small>
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