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NULL Pointer Dereference

CVE-2018-19797

Medium
6.5/10

Summary

In LibSass versions through 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.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • REQUIRED
  • NONE
  • NONE
  • HIGH

CWE-476 - NULL Pointer Dereference

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

References

Advisory Timeline

  • Published