Ubuntu alert USN-5760-1 (libxml2)

From:
             
 
"Leonidas S. Barbosa" <leo.barbosa@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-5760-1] libxml2 vulnerabilities
Date:
             
 
Mon, 05 Dec 2022 09:57:49 -0300
Message-ID:
             
 
<20221205125749.GA575093@d4rkl41n>
==========================================================================
Ubuntu Security Notice USN-5760-1
December 05, 2022

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

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

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in libxml2.

Software Description:
- libxml2: GNOME XML library

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 libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to expose sensitive information
or cause a crash. (CVE-2022-40303)

It was discovered that libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2022-40304)

Update instructions:

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

Ubuntu 22.10:
  libxml2                         2.9.14+dfsg-1ubuntu0.1
  libxml2-utils                   2.9.14+dfsg-1ubuntu0.1

Ubuntu 22.04 LTS:
  libxml2                         2.9.13+dfsg-1ubuntu0.2
  libxml2-utils                   2.9.13+dfsg-1ubuntu0.2

Ubuntu 20.04 LTS:
  libxml2                         2.9.10+dfsg-5ubuntu0.20.04.5
  libxml2-utils                   2.9.10+dfsg-5ubuntu0.20.04.5

Ubuntu 18.04 LTS:
  libxml2                         2.9.4+dfsg1-6.1ubuntu1.8
  libxml2-utils                   2.9.4+dfsg1-6.1ubuntu1.8

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

References:
  https://ubuntu.com/security/notices/USN-5760-1
  CVE-2022-2309, CVE-2022-40303, CVE-2022-40304

Package Information:
  https://launchpad.net/ubuntu/+source/libxml2/2.9.14+dfsg-...
  https://launchpad.net/ubuntu/+source/libxml2/2.9.13+dfsg-...
  https://launchpad.net/ubuntu/+source/libxml2/2.9.10+dfsg-...
  https://launchpad.net/ubuntu/+source/libxml2/2.9.4+dfsg1-...