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    CVE-2019-6286

    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.

    Published:Jan 14, 2019
    Last Modified:Nov 21, 2024
    EPS:Jan 14, 2019
    EPSS Score:0.00286
    CVSS Score:6.5

    Affected Products

    Vendor
    Sass-lang
    Product
    Libsass

    Exploits

    https://github.com/sass/libsass/issues/2815https://github.com/sass/libsass/issues/2815

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2022-43357 (CVSS 7.5) — Stack overflow vulnerability in ast_selectors.cpp in function Sass::CompoundSelector::has_real_parent_ref in l…
    CVE-2022-43358 (CVSS 7.5) — Stack overflow vulnerability in ast_selectors.cpp: in function Sass::ComplexSelector::has_placeholder in libsa…
    CVE-2022-26592 (CVSS 8.8) — Stack Overflow vulnerability in libsass 3.6.5 via the CompoundSelector::has_real_parent_ref function.…
    CVE-2019-18798 (CVSS 6.5) — LibSass before 3.6.3 allows a heap-based buffer over-read in Sass::weaveParents in ast_sel_weave.cpp.…
    CVE-2019-18797 (CVSS 6.5) — LibSass 3.6.1 has uncontrolled recursion in Sass::Eval::operator()(Sass::Binary_Expression*) in eval.cpp.…
    CVE-2019-18799 (CVSS 6.5) — LibSass before 3.6.3 allows a NULL pointer dereference in Sass::Parser::parseCompoundSelector in parser_select…
    CVE-2019-6283 (CVSS 6.5) — In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::parenthese_scope in prelexer.hpp.…
    CVE-2019-6284 (CVSS 6.5) — In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::alternatives in prelexer.hpp.…
    CVE-2018-20190 (CVSS 6.5) — In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Eval::operator()(Sass::Supports_Operator*) …
    CVE-2018-19837 (CVSS 6.5) — In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers t…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High