CVE-2018-20190: Null Pointer Dereference
First published: Mon Dec 17 2018(Updated: )
In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Eval::operator()(Sass::Supports_Operator*) in eval.cpp may cause a Denial of Service (application crash) via a crafted sass input file.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libsass | =3.5.5 | |
| IBM Data Virtualization on Cloud Pak for Data | <=3.0 | |
| IBM Watson Query with Cloud Pak for Data as a Service | <=2.2 | |
| IBM Watson Query with Cloud Pak for Data as a Service | <=2.1 | |
| IBM Watson Query with Cloud Pak for Data as a Service | <=2.0 | |
| IBM Data Virtualization on Cloud Pak for Data | <=1.8 | |
| IBM Data Virtualization on Cloud Pak for Data | <=1.7 |
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Reference Links
- http://www.securityfocus.com/bid/106232
- https://github.com/sass/libsass/issues/2786
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html
- https://www.ibm.com/support/pages/node/7183851 (Advisory)
Frequently Asked Questions
What is CVE-2018-20190?
CVE-2018-20190 is a vulnerability in LibSass 3.5.5 that may cause a Denial of Service (application crash) via a crafted sass input file.
How severe is CVE-2018-20190?
CVE-2018-20190 has a severity score of 6.5 (medium).
How does CVE-2018-20190 affect LibSass?
CVE-2018-20190 affects LibSass version 3.5.5.
How can CVE-2018-20190 be exploited?
CVE-2018-20190 can be exploited by providing a crafted sass input file.
Is there a fix for CVE-2018-20190?
Yes, updating to a version higher than 3.5.5 resolves the vulnerability.
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- version/ibm data virtualization on cloud pak for data/1.7