Vulnerability in Sass-Lang Libsass
CVE-2018-20822
LibSass 3.5.4 allows attackers to cause a denial-of-service (uncontrolled recursion in Sass::Complex_Selector::perform in ast.hpp and Sass::Inspect::operator in inspect.cpp).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.021 (81.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Sass-Lang Libsass — versions 3.5.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/sass/libsass/issues/2671 (Exploit, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html (vendor-advisory, Broken Link)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html (vendor-advisory, Broken Link)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html (vendor-advisory, Broken Link)
Frequently asked questions
- What is CVE-2018-20822?
- CVE-2018-20822 is a medium-severity vulnerability in Sass-Lang Libsass, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2019-04-23.
- How severe is CVE-2018-20822?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-20822 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.