Out-of-bounds Read in Sass-Lang Libsass

CVE-2018-19218

In LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack.

Vulnerability class: Buffer Overflow

EPSS: 0.012 (63.8th 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

Weakness classification (CWE)

References

  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2018-19218?
CVE-2018-19218 is a medium-severity vulnerability in Sass-Lang Libsass, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2018-11-12.
How severe is CVE-2018-19218?
Medium severity. CVSS v3 base score is 6.5 out of 10.