RHSA-2020:1151 - Security Advisory

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):

• libreoffice: LibreLogo script can be manipulated into executing arbitrary python commands (CVE-2019-9848)
• libreoffice: Insufficient URL validation allowing LibreLogo script execution (CVE-2019-9850)
• libreoffice: LibreLogo global-event script execution (CVE-2019-9851)
• libreoffice: Insufficient URL encoding flaw in allowed script location check (CVE-2019-9852)
• libreoffice: Insufficient URL decoding flaw in categorizing macro location (CVE-2019-9853)
• libreoffice: Unsafe URL assembly flaw in allowed script location check (CVE-2019-9854)
• libreoffice: Remote resources protection module not applied to bullet graphics (CVE-2019-9849)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 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 Life Cycle Support 7 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 Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 1601372 - [fix available] libreoffice fails to build with --nocheck
• BZ - 1728763 - [fix available] block schemas completely unreadable in libreoffice writer
• BZ - 1737421 - CVE-2019-9849 libreoffice: Remote resources protection module not applied to bullet graphics
• BZ - 1737427 - CVE-2019-9848 libreoffice: LibreLogo script can be manipulated into executing arbitrary python commands
• BZ - 1744862 - CVE-2019-9850 libreoffice: Insufficient URL validation allowing LibreLogo script execution
• BZ - 1744866 - CVE-2019-9851 libreoffice: LibreLogo global-event script execution
• BZ - 1744868 - CVE-2019-9852 libreoffice: Insufficient URL encoding flaw in allowed script location check
• BZ - 1769907 - CVE-2019-9854 libreoffice: Unsafe URL assembly flaw in allowed script location check
• BZ - 1797466 - CVE-2019-9853 libreoffice: Insufficient URL decoding flaw in categorizing macro location

CVEs

• CVE-2019-9848
• CVE-2019-9849
• CVE-2019-9850
• CVE-2019-9851
• CVE-2019-9852
• CVE-2019-9853
• CVE-2019-9854

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.8_release_notes/index