Bug 1583182 (CVE-2018-11499)

Summary:	CVE-2018-11499 libsass: Use-after-free vulnerability in sass_context.cpp:handle_error() can lead to denial of service or other unspecified impact
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
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, rhel8-maint
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:	2021-10-21 20:05:02 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:	1583183, 1583184
Bug Blocks:	1751663

Description Adam Mariš 2018-05-28 12:27:17 UTC

A use-after-free vulnerability exists in handle_error() in sass_context.cpp in LibSass 3.4.x and 3.5.x through 3.5.4 that could be leveraged to cause a denial of service (application crash) or possibly unspecified other impact.

Upstream bug:

https://github.com/sass/libsass/issues/2643

Comment 1 Adam Mariš 2018-05-28 12:27:42 UTC

Created libsass tracking bugs for this issue:

Affects: fedora-all [bug 1583183]

Comment 3 Riccardo Schirone 2019-11-22 14:02:31 UTC

Upstream patch:
https://github.com/sass/libsass/pull/2755