Bug 1668918 (CVE-2019-6283)

Summary:	CVE-2019-6283 libsass: heap-based buffer over-read in Sass::Prelexer::parenthese_scope in prelexer.hpp
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aurelien, fmuellner
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-27 03:23:12 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1668920, 1668919, 1679617
Bug Blocks:	1668927

Description Laura Pardo 2019-01-23 21:28:59 UTC

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


References:
https://github.com/sass/libsass/issues/2814

Comment 1 Laura Pardo 2019-01-23 21:29:15 UTC

Created libsass tracking bugs for this issue:

Affects: epel-7 [bug 1668920]
Affects: fedora-all [bug 1668919]