Out-of-bounds read in LibSass - CVE-2019-6286

 

Out-of-bounds read in LibSass - CVE-2019-6286

Published: January 17, 2019


Vulnerability identifier: #VU17067
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-6286
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Sass::Prelexer::skip_over_scopes in prelexer.hpp when called from Sass::Parser::parse_import(). A remote attacker can pass specially specially crafted data to the application, trigger out-of-bounds read error and read contents of memory on the system.


Affected software

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

How to mitigate CVE-2019-6286

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

External References

Related Security Bulletins