SB2018111212 - Multiple vulnerabilities in Sass LibSass



SB2018111212 - Multiple vulnerabilities in Sass LibSass

Published: November 12, 2018 Updated: August 8, 2020

Security Bulletin ID SB2018111212
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2018-19218)

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

In LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack.


2) Input validation error (CVE-ID: CVE-2018-19219)

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

In LibSass 3.5-stable, there is an illegal address access at Sass::Eval::operator that will lead to a DoS attack.


Remediation

Install update from vendor's website.