Sass-Lang Libsass vulnerabilities

CVE-2022-43357 [HIGH] CWE-787 CVE-2022-43357: Stack overflow vulnerability in ast_selectors.cpp in function Sass::CompoundSelector::has_real_paren Stack overflow vulnerability in ast_selectors.cpp in function Sass::CompoundSelector::has_real_parent_ref in libsass:3.6.5-8-g210218, which can be exploited by attackers to causea denial of service (DoS). Also affects the command line driver for libsass, sassc 3.6.2.

CVE-2022-26592 [HIGH] CWE-787 CVE-2022-26592: Stack Overflow vulnerability in libsass 3.6.5 via the CompoundSelector::has_real_parent_ref function Stack Overflow vulnerability in libsass 3.6.5 via the CompoundSelector::has_real_parent_ref function.

CVE-2022-43358 [HIGH] CWE-787 CVE-2022-43358: Stack overflow vulnerability in ast_selectors.cpp: in function Sass::ComplexSelector::has_placeholde Stack overflow vulnerability in ast_selectors.cpp: in function Sass::ComplexSelector::has_placeholder in libsass:3.6.5-8-g210218, which can be exploited by attackers to cause a denial of service (DoS).

CVE-2019-18797 [MEDIUM] CWE-674 CVE-2019-18797: LibSass 3.6.1 has uncontrolled recursion in Sass::Eval::operator()(Sass::Binary_Expression*) in eval LibSass 3.6.1 has uncontrolled recursion in Sass::Eval::operator()(Sass::Binary_Expression*) in eval.cpp.

CVE-2019-18798 [MEDIUM] CWE-125 CVE-2019-18798: LibSass before 3.6.3 allows a heap-based buffer over-read in Sass::weaveParents in ast_sel_weave.cpp LibSass before 3.6.3 allows a heap-based buffer over-read in Sass::weaveParents in ast_sel_weave.cpp.

CVE-2019-18799 [MEDIUM] CWE-476 CVE-2019-18799: LibSass before 3.6.3 allows a NULL pointer dereference in Sass::Parser::parseCompoundSelector in par LibSass before 3.6.3 allows a NULL pointer dereference in Sass::Parser::parseCompoundSelector in parser_selectors.cpp.

CVE-2018-20822 [MEDIUM] CWE-674 CVE-2018-20822: LibSass 3.5.4 allows attackers to cause a denial-of-service (uncontrolled recursion in Sass::Complex 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).

CVE-2018-20821 [MEDIUM] CWE-674 CVE-2018-20821: The parsing component in LibSass through 3.5.5 allows attackers to cause a denial-of-service (uncont 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).

CVE-2019-6286 [MEDIUM] CVE-2019-6286: In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::skip_over_scopes in prelex In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::skip_over_scopes in prelexer.hpp when called from Sass::Parser::parse_import(), a similar issue to CVE-2018-11693.

CVE-2019-6284 [MEDIUM] CWE-125 CVE-2019-6284: In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::alternatives in prelexer.h In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::alternatives in prelexer.hpp.

CVE-2019-6283 [MEDIUM] CWE-125 CVE-2019-6283: In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::parenthese_scope in prelex In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::parenthese_scope in prelexer.hpp.

CVE-2018-20190 [MEDIUM] CWE-476 CVE-2018-20190: In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Eval::operator()(Sass::Supports_O In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Eval::operator()(Sass::Supports_Operator*) in eval.cpp may cause a Denial of Service (application crash) via a crafted sass input file.

CVE-2018-19837 [MEDIUM] CWE-400 CVE-2018-19837: In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows a In LibSass prior to 3.5.5, 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, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.

CVE-2018-19838 [MEDIUM] CWE-400 CVE-2018-19838: In LibSass prior to 3.5.5, functions inside ast.cpp for IMPLEMENT_AST_OPERATORS expansion allow atta In LibSass prior to 3.5.5, 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, as demonstrated by recursive calls involving clone(), cloneChildren(), and copy().

CVE-2018-19839 [MEDIUM] CWE-125 CVE-2018-19839: In LibSass prior to 3.5.5, the function handle_error in sass_context.cpp allows attackers to cause a In LibSass prior to 3.5.5, 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.

CVE-2018-19827 [HIGH] CWE-416 CVE-2018-19827: In LibSass 3.5.5, a use-after-free vulnerability exists in the SharedPtr class in SharedPtr.cpp (or In LibSass 3.5.5, a use-after-free vulnerability exists in the SharedPtr class in SharedPtr.cpp (or SharedPtr.hpp) that may cause a denial of service (application crash) or possibly have unspecified other impact.

CVE-2018-19826 [MEDIUM] CWE-835 CVE-2018-19826: In inspect.cpp in LibSass 3.5.5, a high memory footprint caused by an endless loop (containing a Sas In inspect.cpp in LibSass 3.5.5, a high memory footprint caused by an endless loop (containing a Sass::Inspect::operator()(Sass::String_Quoted*) stack frame) may cause a Denial of Service via crafted sass input files with stray '&' or '/' characters. NOTE: Upstream comments indicate this issue is closed as "won't fix" and "works as intended" by desi

CVE-2018-19797 [MEDIUM] CWE-476 CVE-2018-19797: In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Selector_List::populate_extends i 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.

CVE-2018-19218 [MEDIUM] CWE-125 CVE-2018-19218: In LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_ In LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack.

CVE-2018-19219 [MEDIUM] CWE-119 CVE-2018-19219: In LibSass 3.5-stable, there is an illegal address access at Sass::Eval::operator that will lead to In LibSass 3.5-stable, there is an illegal address access at Sass::Eval::operator that will lead to a DoS attack.