CVE-2018-19797

NameCVE-2018-19797
DescriptionIn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libsass (PTS)stretch3.4.3-1vulnerable
buster3.5.5-4vulnerable
bullseye3.6.4+20201122-1fixed
sid3.6.4+20210501-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libsasssource(unstable)3.6.3-1

Notes

[buster] - libsass <no-dsa> (Minor issue)
[stretch] - libsass <no-dsa> (Minor issue)
https://github.com/sass/libsass/issues/2779
https://github.com/sass/libsass/commit/e94b5f91ec372a84be1f9c0da32cb6e0af0b99fe

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