Moderate: libreoffice security and bug fix update

Related Vulnerabilities: CVE-2017-7870   CVE-2017-7870   CVE-2017-7870  

Synopsis

Moderate: libreoffice security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

An update for libreoffice is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

LibreOffice is an open source, community-developed office productivity suite. It includes key desktop applications, such as a word processor, a spreadsheet, a presentation manager, a formula editor, and a drawing program. LibreOffice replaces OpenOffice and provides a similar but enhanced and extended office suite.

Security Fix(es):

  • An out-of-bounds write flaw was found in the way Libreoffice rendered certain documents containing Polygon images. By tricking a user into opening a specially crafted LibreOffice file, an attacker could possibly use this flaw to execute arbitrary code with the privileges of the user opening the file. (CVE-2017-7870)

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

All running instances of LibreOffice applications must be restarted for this update to take effect.

Affected Products

  • Red Hat Enterprise Linux Server 7 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support 7.6 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support 7.5 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support 7.4 x86_64
  • Red Hat Enterprise Linux Server - AUS 7.6 x86_64
  • Red Hat Enterprise Linux Server - AUS 7.4 x86_64
  • Red Hat Enterprise Linux Workstation 7 x86_64
  • Red Hat Enterprise Linux Desktop 7 x86_64
  • Red Hat Enterprise Linux for Power, little endian 7 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.6 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.5 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.4 ppc64le
  • Red Hat Enterprise Linux Server - TUS 7.6 x86_64
  • Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.6 ppc64le
  • Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.4 ppc64le
  • Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6 x86_64
  • Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.4 x86_64

Fixes

  • BZ - 1397992 - [fix available] Crash in calc after closing dialog box with a11y enabled
  • BZ - 1411327 - [fix available] Password Protected (Encrypted) files opening as plain text after cancelling password dialog
  • BZ - 1421726 - [fix available] redraw issues in libreoffice calc when 300 or more cells are populated
  • BZ - 1431539 - gnome-documents requires libreofficekit which is not provided
  • BZ - 1444061 - CVE-2017-7870 libreoffice: Heap-buffer-overflow in tools::Polygon::Insert
  • BZ - 1454598 - [fix available] LibreOffice Writer crashes when selecting a bullet or numbering type from toolbar
  • BZ - 1454693 - Segmentation fault after clicking gnome-documents back button while presentation is being slowly loaded

CVEs

References