Input validation error in LibreOffice - CVE-2019-9851

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Main Vulnerability Database Vulnerabilities #VU20860

Input validation error in LibreOffice - CVE-2019-9851

Published: September 4, 2019 / Updated: June 17, 2021


Vulnerability identifier: #VU20860
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-9851
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to the affected software mishandles LibreLogo scripts. A remote attacker can persuade a user to open a specially crafted document and execute arbitrary commands on an affected system.


Affected software

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

How to mitigate CVE-2019-9851

Install updates from vendor's website.

LibreOffice - update to 6.2.6
libreoffice (Debian package) - addressed in versions 1:5.2.7-1+deb9u10, 1:6.1.5-3+deb10u3
libreoffice (Red Hat package) - addressed in versions 5.3.6.1-24.el7, 6.0.6.1-20.el8
libreoffice (Alpine package) - update to 6.2.6.2-r0
libreoffice - addressed in versions 6.1.6.3-3.fc29, 6.2.6.2-1.fc30

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins