What’s Vulnerable › Vulnerabilities

CVE-2018-19797

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-12-03 · updated 2026-06-17
• Weakness: CWE-476

Description

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.

Affected products

• Sass-Lang Libsass: 3.5.5

References

• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html
• https://github.com/sass/libsass/issues/2779
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html
• https://github.com/sass/libsass/issues/2779

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