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    <lastBuildDate>Mon, 19 Oct 2026 15:09:03 +0000</lastBuildDate>
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      <title>CVE-2021-22547 — Buffer overrun in Google Cloud IoT Device SDK for Embedded C</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2021-22547</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Google LLC Google Cloud IoT Device SDK for Embedded C&lt;/p&gt;
&lt;p&gt;In IoT Devices SDK, there is an implementation of calloc() that doesn&amp;#39;t have a length check. An attacker could pass in memory objects larger than the buffer and wrap around to have a smaller buffer than required, allowing the attacker access to the other parts of the heap. We recommend upgrading the Google Cloud IoT Device SDK for Embedded C used to 1.0.3 or greater.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Google LLC Google Cloud IoT Device SDK for Embedded C&lt;/p&gt;
&lt;p&gt;In IoT Devices SDK, there is an implementation of calloc() that doesn&amp;#39;t have a length check. An attacker could pass in memory objects larger than the buffer and wrap around to have a smaller buffer than required, allowing the attacker access to the other parts of the heap. We recommend upgrading the Google Cloud IoT Device SDK for Embedded C used to 1.0.3 or greater.&lt;/p&gt;</content:encoded>
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