Rapid7’s 2026 Global Cybersecurity Summit is now available on-demand.Watch sessions.
Rapid7

vulnerability

Ubuntu: USN-4837-1 (CVE-2018-11697): LibSass vulnerabilities

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:P)
Published
Jun 4, 2018
Added
Mar 22, 2023
Modified
Mar 27, 2026

Description

An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.

Solution

ubuntu-pro-upgrade-libsass0
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.