CVE-2018-11499 Use after free in n/a

Critical 9.8 Published 26 May 2018 Updated 5 Aug 2024

A use-after-free in LibSass allows attackers to cause a denial of service via application crash.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2018-11499?

CVE-2018-11499 is a critical use after free vulnerability in n/a, published on 26 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A use-after-free vulnerability exists in handle_error() in sass_context.cpp in LibSass 3.4.x and 3.5.x through 3.5.4 that could be leveraged to cause a denial of service (application crash) or possibly unspecified other impact.

Weakness: CWE-416

Which versions are affected by CVE-2018-11499?

It affects 1 product.

Products include Sass-Lang Libsass.

How do I fix CVE-2018-11499?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2018-11499 being exploited?

There is no known exploitation of CVE-2018-11499 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-11499, GHSA-c87p-mhv6-fff6, UBUNTU-CVE-2018-11499.