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CVE-2019-6284

Published: 14 January 2019

In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::alternatives in prelexer.hpp.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
libsass
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(3.5.5-4)
bionic
Released (3.4.8-1ubuntu0.1~esm1)
Available with Ubuntu Pro
xenial Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Not vulnerable
(3.5.5-4)
focal Not vulnerable
(3.5.5-4)
groovy Not vulnerable
(3.5.5-4)
impish Not vulnerable
(3.5.5-4)
jammy Not vulnerable
(3.5.5-4)
kinetic Not vulnerable
(3.5.5-4)
lunar Not vulnerable
(3.5.5-4)
trusty Does not exist

upstream Needs triage

mantic Not vulnerable
(3.5.5-4)
Patches:
upstream: https://github.com/sass/libsass/commit/0f3d3f8df99af422af055c41d778ca9c5c60a0bb

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H