SB2019090309 - OpenSUSE Linux update for libreoffice
Published: September 3, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Code Injection (CVE-ID: CVE-2019-9848)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in LibreLogo component, bundled with LibreOffice application. A remote attacker can create a specially crafted document, trick the victim into opening it and execute arbitrary python code on the target system without displaying any warnings.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Security restrictions bypass (CVE-ID: CVE-2019-9849)
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.
3) Input validation error (CVE-ID: CVE-2019-9850)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insufficient patching of URL validation, as described in SB2019071703 #1. A remote attacker can bypass the protection that blocks calling LibreLogo from script event handlers and again trigger this calling.
4) Input validation error (CVE-ID: CVE-2019-9851)
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.
5) Path traversal (CVE-ID: CVE-2019-9852)
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to insufficient URL encoding in script location checks. A remote attacker can by persuade a user to open a specially crafted document and execute preinstalled macros on the target system.
Remediation
Install update from vendor's website.