NULL Pointer Dereference Affecting libsass package, versions <3.6.3-1
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- published3 Dec 2018
- disclosed3 Dec 2018
Introduced: 3 Dec 2018
CVE-2018-19797 (opens in a new tab)How to fix?
Upgrade Debian:11 libsass to version 3.6.3-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libsass package and not the libsass package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2018-19797
- 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
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-19797