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List:       ubuntu-security-announce
Subject:    [USN-5638-4] Expat vulnerabilities
From:       "Leonidas S. Barbosa" <leo.barbosa () canonical ! com>
Date:       2023-02-28 18:48:11
Message-ID: 20230228184811.GA2266737 () d4rkl41n
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==========================================================================
Ubuntu Security Notice USN-5638-4
February 28, 2023

expat vulnerabilities
==========================================================================

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

- Ubuntu 14.04 ESM

Summary:

Expat could be made to crash or execute arbitrary code.

Software Description:
- expat: XML parsing C library

Details:

USN-5638-1 fixed several vulnerabilities in Expat. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

 Rhodri James discovered that Expat incorrectly handled memory when
 processing certain malformed XML files. An attacker could possibly
 use this issue to cause a crash or execute arbitrary code.

Update instructions:

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

Ubuntu 14.04 ESM:
  expat                           2.1.0-4ubuntu1.4+esm7
  libexpat1                       2.1.0-4ubuntu1.4+esm7

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

References:
  https://ubuntu.com/security/notices/USN-5638-4
  https://ubuntu.com/security/notices/USN-5638-1
  CVE-2022-40674, CVE-2022-43680

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