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Security update for libsass

This update for libsass to version 3.6.1 fixes the following issues:

Security issues fixed:

- CVE-2019-6283: Fixed heap-buffer-overflow in Sass::Prelexer::parenthese_scope(char const*) (boo#1121943).
- CVE-2019-6284: Fixed heap-based buffer over-read exists in Sass:Prelexer:alternatives (boo#1121944).
- CVE-2019-6286: Fixed heap-based buffer over-read exists in Sass:Prelexer:skip_over_scopes (boo#1121945).
- CVE-2018-11499: Fixed use-after-free vulnerability in sass_context.cpp:handle_error (boo#1096894).
- CVE-2018-19797: Disallowed parent selector in selector_fns arguments (boo#1118301).
- CVE-2018-19827: Fixed use-after-free vulnerability exists in the SharedPtr class (boo#1118346).
- CVE-2018-19837: Fixed stack overflow in Eval::operator() (boo#1118348).
- CVE-2018-19838: Fixed stack-overflow at IMPLEMENT_AST_OPERATORS expansion (boo#1118349).
- CVE-2018-19839: Fixed buffer-overflow (OOB read) against some invalid input (boo#1118351).
- CVE-2018-20190: Fixed Null pointer dereference in Sass::Eval::operator()(Sass::Supports_Operator*) (boo#1119789).
- CVE-2018-20821: Fixed uncontrolled recursion in Sass:Parser:parse_css_variable_value (boo#1133200).
- CVE-2018-20822: Fixed stack-overflow at Sass::Inspect::operator() (boo#1133201).

Submitted by Cédric Bosdonnat (cbosdonnat)

Fixed bugs

bnc#1119789

VUL-1: CVE-2018-20190: libsass: NULL ptr deref in Sass::Eval::operator()(Sass::Supports_Operator*)

bnc#1118351

VUL-1: CVE-2018-19839: libsass: the function handle_error in sass_context.cpp allows attackers to cause a denial-of-service resulting from a heap-based buffer over-read via a crafted sass file

bnc#1121944

VUL-1: CVE-2019-6284: libsass: heap-based buffer over-read exists in Sass:Prelexer:alternatives in prelexer.hpp

bnc#1133200

VUL-1: CVE-2018-20821: libsass: The parsing component in LibSass through 3.5.5 allows attackers to cause a denial-of-service (uncontrolled recursion in Sass:Parser:parse_css_variable_value in parser.cpp).

bnc#1121945

VUL-1: CVE-2019-6286: libsass: heap-based buffer over-read exists in Sass:Prelexer:skip_over_scopes in prelexer.hpp when called from Sass:Parser:parse_import()

bnc#1096894

VUL-0: CVE-2018-11499: libsass: Use-after-free vulnerability in sass_context.cpp:handle_error() can lead to denial of service or other unspecified impact

bnc#1133201

VUL-1: CVE-2018-20822: libsass: LibSass 3.5.4 allows attackers to cause a denial-of-service (uncontrolled recursion in Sass:Complex_Selector:perform in ast.hpp and Sass:Inspect:operator in inspect.cpp).

bnc#1121943

VUL-1: CVE-2019-6283: libsass: heap-based buffer over-read exists in Sass:Prelexer:parenthese_scope in prelexer.hpp

bnc#1118349

VUL-1: CVE-2018-19838: libsass: functions inside ast.cpp for IMPLEMENT_AST_OPERATORS expansion allow attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file

bnc#1118301

VUL-1: CVE-2018-19797: libsass: NULL Pointer Dereference in the function Sass:Selector_List:populate_extends in SharedPtr.hpp may cause a Denial of Service

bnc#1118348

VUL-1: CVE-2018-19837: libsass: Sass:Eval:operator()(Sass:Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file

bnc#1118346

VUL-1: CVE-2018-19827: libsass: a use-after-free vulnerability exists in the SharedPtr class in SharedPtr.cpp (or SharedPtr.hpp) that may cause a denial of service or possibly have unspecified other impact

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Fixed bugs

Selected Binaries

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