CVE-2018-19797 — NULL Pointer Dereference in Libsass

CWE-476 — NULL Pointer Dereference9 documents7 sources
Severity
6.5MEDIUMNVD
EPSS
0.3%
top 43.93%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
LibsassDebian LibsassSass-lang Libsass+1 more
Timeline
PublishedDec 3
Latest updateMay 14

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.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/libsass< libsass 3.6.3-1 (bookworm)
▶Debianlibsass/libsass< 3.6.3-1+3

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-c73w-7v4m-x2gx: In LibSass 3↗2022-05-14
▶
OSV
CVE-2018-19797: In LibSass 3↗2018-12-03
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📋Vendor Advisories

3
Ubuntu
LibSass vulnerabilities↗2021-03-15
▶
Microsoft
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 c↗2018-12-11
▶
Debian
CVE-2018-19797: libsass - In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Selector_List...↗2018
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💬Community

3
Bugzilla
CVE-2018-19797 CVE-2018-19826 CVE-2018-19827 CVE-2018-19837 CVE-2018-19838 CVE-2018-19839 CVE-2018-20190 libsass: various flaws [epel-7]↗2019-01-31
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Bugzilla
CVE-2018-19797 CVE-2018-19826 CVE-2018-19827 CVE-2018-19837 CVE-2018-19838 CVE-2018-19839 CVE-2018-20190 libsass: various flaws [fedora-all]↗2019-01-31
▶
Bugzilla
CVE-2018-19797 libsass: NULL pointer dereference in Sass::Selector_List::populate_extends function resulting in a denial of service↗2019-01-31
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CVE-2018-19797 — NULL Pointer Dereference in Libsass | cvebase