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List:       ubuntu-security-announce
Subject:    [USN-5064-2] GNU cpio vulnerability
From:       Camila Camargo de Matos <camila.camargodematos () canonical ! com>
Date:       2022-01-27 18:18:04
Message-ID: c17f8e00-f714-4616-0461-3c814e503c4e () canonical ! com
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==========================================================================
Ubuntu Security Notice USN-5064-2
January 27, 2022

cpio vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM

Summary:

GNU cpio could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- cpio: a tool to manage archives of files

Details:

USN-5064-1 fixed vulnerabilities in GNU cpio. This update provides
the corresponding updates for Ubuntu 16.04 ESM.

Original advisory details:

Maverick Chung and Qiaoyi Fang discovered that cpio incorrectly handled
certain pattern files. A remote attacker could use this issue to cause cpio
to crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 ESM:
cpio 2.11+dfsg-5ubuntu1.1+esm1

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5064-2
https://ubuntu.com/security/notices/USN-5064-1
CVE-2021-38185

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