Improper input validation in Libsass

CVE-2017-11342

There is an illegal address access in ast.cpp of LibSass 3.4.5. A crafted input will lead to a remote denial of service attack.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.012 (65.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Libsass — versions 3.4.5
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2017-11342?: CVE-2017-11342 is a high-severity vulnerability in Libsass, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2017-07-17.
How severe is CVE-2017-11342?: High severity. CVSS v3 base score is 7.5 out of 10.