CVE-2018-19837
First published: Tue Dec 04 2018(Updated: )
In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libsass | <3.5.5 |
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Reference Links
- 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://github.com/sass/libsass/commit/210fdff7a65370c2ae24e022a2b35da8c423cc5f
- https://github.com/sass/libsass/issues/2659
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2018-19837.
What is the severity of CVE-2018-19837?
The severity of CVE-2018-19837 is medium with a CVSS score of 6.5.
What software is affected by CVE-2018-19837?
The Sass-lang Libsass software with versions up to and excluding 3.5.5 is affected by CVE-2018-19837.
How can an attacker exploit CVE-2018-19837?
An attacker can exploit CVE-2018-19837 by using a crafted sass file that triggers a denial-of-service due to stack consumption.
Is there a fix available for CVE-2018-19837?
Yes, updating the Sass-lang Libsass software to version 3.5.5 or newer fixes CVE-2018-19837.
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