CVE-2019-18798 Memory corruption in n/a
A heap-based buffer over-read in LibSass allows attackers to cause denial of service or disclose sensitive memory contents.
- 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
- Available
What is CVE-2019-18798?
CVE-2019-18798 is a medium-severity memory corruption vulnerability in n/a, published on 6 Nov 2019. 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
LibSass before 3.6.3 allows a heap-based buffer over-read in Sass::weaveParents in ast_sel_weave.cpp.
Weakness: CWE-125
Which versions are affected by CVE-2019-18798?
It affects 1 product.
Products include Sass-Lang Libsass.
How do I fix CVE-2019-18798?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-18798 being exploited?
There is no known exploitation of CVE-2019-18798 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-18798, GHSA-3gpc-2x2f-5fxx, JLSEC-2026-506.