CVE-2018-19826 Denial of service in n/a
Crafted Sass input files can trigger an endless loop in LibSass, causing a denial of service via high memory consumption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-19826?
CVE-2018-19826 is a medium-severity denial of service vulnerability in n/a, published on 3 Dec 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
In inspect.cpp in LibSass 3.5.5, a high memory footprint caused by an endless loop (containing a Sass::Inspect::operator()(Sass::String_Quoted*) stack frame) may cause a Denial of Service via crafted sass input files with stray '&' or '/' characters. NOTE: Upstream comments indicate this issue is closed as "won't fix" and "works as intended" by design
Weakness: CWE-835
Which versions are affected by CVE-2018-19826?
It affects 1 product.
Products include Sass-Lang Libsass.
How do I fix CVE-2018-19826?
No fix has been published for CVE-2018-19826 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-19826 being exploited?
There is no known exploitation of CVE-2018-19826 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-vj6g-6xq4-cmrw.