Adobe Releases Out-of-Band Security Bulletin for Adobe Acrobat and Reader (APSB19-02)

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<p>Adobe issued an out-of-band security bulletin which addresses two critical vulnerabilities (CVE-2018-16011, CVE-2018-16018) in Adobe Acrobat and Reader.</p>

<h2>Background</h2>
<p>On January 3, Adobe released <a href=”https://helpx.adobe.com/security/products/acrobat/apsb19-02.html”>a security bulletin</a> to address two critical vulnerabilities in Adobe Acrobat and Reader for both Windows and macOS. Adobe published a prenotification for this bulletin on December 27 to give users advance warning.</p>

<h2>Vulnerability details</h2>
<p>The security bulletin addresses two critical vulnerabilities. The first, CVE-2018-16011, is a <a href=”https://cwe.mitre.org/data/definitions/416.html”>use after free</a> vulnerability that could lead to arbitrary code execution. CVE-2018-16018 is a security bypass vulnerability that could allow an attacker to elevate privileges. An attacker could create and deliver a specially crafted PDF file to a vulnerable target in order to exploit these vulnerabilities. Adobe hasn’t provided any additional details about these vulnerabilities, including whether or not they have been observed in attacks in the wild.</p>

<p>Tenable’s Security Response Team observed that both of the CVEs listed in APSB19-02 were initially included as part of <a href=”https://helpx.adobe.com/security/products/acrobat/apsb18-41.html”>APSB18…, Adobe’s monthly security bulletin from December 2018. However, both CVEs were removed on or before December 20, according to the last revision date in the bulletin. Additionally, Adobe revised APSB19-02 to include CVE-2018-16018 in place of the previously listed CVE-2018-19725.</p>

<h2>Urgently required actions</h2>
<p>Adobe has <a href=”https://helpx.adobe.com/security/products/acrobat/apsb19-02.html#Solutio… updated versions</a> of Adobe Acrobat DC, Adobe Acrobat Reader DC, Acrobat 2017 and Acrobat Reader DC 2017 that address these vulnerabilities. End users and IT administrators are encouraged to upgrade to these patched versions as soon as possible.</p>

<h2>Identifying affected systems</h2>
<p>Tenable’s plugins for APSB18-41 will be updated to reflect Adobe’s revised bulletin. Once updated, the following list of Nessus plugins to identify these specific vulnerabilities will appear <a href=”https://www.tenable.com/plugins/search?q=cves%3A(%22CVE-2018-16011%22%20AND%20%20%22CVE-2018-16018%22)&sort=&page=1″>here</a> as they’re released.</p>

<h2>Get more information</h2>
<ul><li><a href=”https://helpx.adobe.com/security/products/acrobat/apsb19-02.html#Solutio… Bulletin for Adobe Acrobat and Reader | APSB19-02</a></li>
<li><a href=”https://helpx.adobe.com/security/products/acrobat/apsb18-41.html”>Security Bulletin for Adobe Acrobat and Reader | APSB18-41</a></li></ul>

<p><b><i>Learn more about <a href=”https://www.tenable.com/products”>Tenable</a>, the first Cyber Exposure platform for holistic management of your modern attack surface. Get a <a href=”https://www.tenable.com/products/tenable-io/vulnerability-management/eva… 60-day trial</a> of Tenable.io Vulnerability Management. </i></b></p>

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About Tenable
Tenable™, Inc. is the Cyber Exposure company. Over 24,000 organizations of all sizes around the globe rely on Tenable to manage and measure their modern attack surface to accurately understand and reduce cyber risk. As the creator of Nessus®, Tenable built its platform from the ground up to deeply understand assets, networks and vulnerabilities, extending this knowledge and expertise into Tenable.io™ to deliver the world’s first platform to provide live visibility into any asset on any computing platform. Tenable customers include over 50 percent of the Fortune 500, large government agencies and organizations across the private and public sectors. Learn more at tenable.com.
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