NULL pointer dereference in LibSass - CVE-2018-19797

Vulnerability identifier: #VU36350

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-19797

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a crafted sass input file.

LibSass
IBM Watson Machine Learning Accelerator
IBM Planning Analytics Workspace
IBM Security Verify Information Queue
IBM Edge Application Manager
IBM Watson Machine Learning on CP4D
QRadar User Behavior Analytics
IBM QRadar Data Synchronization App

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

IBM Planning Analytics Workspace - update to 2.0.93
IBM Watson Machine Learning on CP4D - update to 2.6.0
IBM QRadar Data Synchronization App - update to 3.2.1
QRadar User Behavior Analytics - update to 4.1.11
IBM Security Verify Information Queue - update to 10.0.0

• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html
• https://github.com/sass/libsass/issues/2779

• Multiple vulnerabilities in Sass LibSass
• Multiple vulnerabilities in IBM Security Verify Information Queue
• Multiple vulnerabilities in IBM Edge Application Manager
• Multiple vulnerabilities in IBM QRadar User Behavior Analytics
• Multiple vulnerabilities in IBM Watson Machine Learning Accelerator on Cloud Pak for Data
• Multiple vulnerabilities in IBM Watson Machine Learning Accelerator on Cloud Pak for Data
• Multiple vulnerabilities in IBM Planning Analytics Workspace
• Multiple vulnerabilities in IBM QRadar Data Synchronization App