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CVE-2018-20822

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Date: April 23, 2019

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).

Language: JS

Severity Score

Related Resources (6)

https://github.com/sass/libsass/issues/2671
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
https://nvd.nist.gov/vuln/detail/CVE-2018-20822
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html
https://www.mend.io/vulnerability-database/CVE-2018-20822

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Uncontrolled Recursion

CWE-674

Top Fix

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Upgrade Version

Upgrade to version libsass - 3.5.5;node-sass - 4.14.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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