Resource exhaustion in Sass-Lang Libsass
CVE-2018-19838
In LibSass prior to 3.5.5, functions inside ast.cpp for IMPLEMENT_AST_OPERATORS expansion allow attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, as demonstrated by recursive calls involving clone(), cloneChildren(), and copy().
Vulnerability class: DoS (Denial of Service)
EPSS: 0.019 (78.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Sass-lang Libsass
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2018-19838?
- CVE-2018-19838 is a medium-severity vulnerability in Sass-Lang Libsass, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2018-12-04.
- How severe is CVE-2018-19838?
- Medium severity. CVSS v3 base score is 6.5 out of 10.