[USN-6028-2] libxml2 vulnerabilities

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-6028-2
June 07, 2023

libxml2 vulnerabilities
==========================================================================

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

- Ubuntu 23.04

Summary:

Several security issues were fixed in libxml2.

Software Description:
- libxml2: GNOME XML library

Details:

USN-6028-1 fixed vulnerabilities in libxml2. This update provides the
corresponding updates for Ubuntu 23.04.

Original advisory details:

 It was discovered that libxml2 incorrectly handled certain XML files.
 An attacker could possibly use this issue to cause a crash.
 (CVE-2022-2309)

 It was discovered that lixml2 incorrectly handled certain XML files.
 An attacker could possibly use this issue to cause a crash or execute
 arbitrary code. (CVE-2023-28484)

 It was discovered that libxml2 incorrectly handled certain XML files.
 An attacker could possibly use this issue to cause a crash.
 (CVE-2023-29469)

Update instructions:

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

Ubuntu 23.04:
  libxml2                         2.9.14+dfsg-1.1ubuntu0.1
  libxml2-utils                   2.9.14+dfsg-1.1ubuntu0.1

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

References:
  https://ubuntu.com/security/notices/USN-6028-2
  https://ubuntu.com/security/notices/USN-6028-1
  CVE-2022-2309, CVE-2023-28484, CVE-2023-29469

Package Information:
  https://launchpad.net/ubuntu/+source/libxml2/2.9.14+dfsg-1.1ubuntu0.1

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