CVE-2018-19797 Information

Description

In LibSass 3.5.5 a NULL Pointer Dereference in the function Sass::Selector_List::populate_extends in SharedPtr.hpp (used by ast.cpp and ast_selectors.cpp) may cause a Denial of Service (application crash) via a crafted sass input file.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5