Security restrictions bypass in LibreOffice - CVE-2019-9849

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU19225

Security restrictions bypass in LibreOffice - CVE-2019-9849

Published: July 17, 2019


Vulnerability identifier: #VU19225
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-9849
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to incorrect implementation of stealth mode feature, intended as an additional level of security that allows to retrieve online content into document from trusted resources only. A remote attacker can create a specially crafted document with bullet graphics, bypass the intended security restrictions and make the application retrieve data from arbitrary external sources.


Affected software

LibreOffice
Arch Linux
Gentoo Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for Power, little endian
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for x86_64
Opensuse
Fedora
libreoffice (Debian package)
libreoffice (Red Hat package)
libreoffice (Alpine package)
libreoffice

How to mitigate CVE-2019-9849

Install updates from vendor's website.

LibreOffice - update to 6.2.5.1
libreoffice (Debian package) - update to 1:5.2.7-1+deb9u9
libreoffice (Red Hat package) - addressed in versions 5.3.6.1-24.el7, 6.0.6.1-20.el8
libreoffice (Alpine package) - addressed in versions 6.2.5.2-r0, 6.3.0.4-r0
libreoffice - addressed in versions 6.1.6.3-2.fc29, 6.1.6.3-3.fc29, 6.2.5.2-1.fc30

External References

Related Security Bulletins