CVE Vulnerabilities

CVE-2019-18797

Uncontrolled Recursion

Published: Nov 06, 2019 | Modified: Nov 08, 2019
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
6.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM

LibSass 3.6.1 has uncontrolled recursion in Sass::Eval::operator()(Sass::Binary_Expression*) in eval.cpp.

Weakness

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

Affected Software

Name Vendor Start Version End Version
Libsass Sass-lang * 3.6.1 (excluding)
Libsass Ubuntu bionic *
Libsass Ubuntu disco *
Libsass Ubuntu eoan *
Libsass Ubuntu groovy *
Libsass Ubuntu hirsute *
Libsass Ubuntu impish *
Libsass Ubuntu kinetic *
Libsass Ubuntu lunar *
Libsass Ubuntu mantic *
Libsass Ubuntu trusty *
Libsass Ubuntu xenial *

Potential Mitigations

References