CVE-2018-19218 Denial of service in n/a

Medium 6.5 Published Updated

An attacker can cause a denial of service in LibSass via illegal address access during CSS variable parsing.

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-2018-19218?

CVE-2018-19218 is a medium-severity denial of service vulnerability in n/a, published on 12 Nov 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 LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack.

Weakness: CWE-125

Which versions are affected by CVE-2018-19218?

It affects 1 product.

Products include Sass-Lang Libsass.

How do I fix CVE-2018-19218?

No fix has been published for CVE-2018-19218 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-2018-19218 being exploited?

There is no known exploitation of CVE-2018-19218 in the wild and no public exploit code.

Sources

Also known as GHSA-cxrv-5xrr-3rp8, UBUNTU-CVE-2018-19218.

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