CVE-2018-18503 Memory corruption in Firefox
A compartment mismatch in Firefox audio buffer manipulation can lead to exploitable crashes, potentially allowing code execution or denial of service.
- 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-2018-18503?
CVE-2018-18503 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 5 Feb 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
When JavaScript is used to create and manipulate an audio buffer, a potentially exploitable crash may occur because of a compartment mismatch in some situations. This vulnerability affects Firefox < 65.
Weakness: CWE-119
Which versions are affected by CVE-2018-18503?
It affects 2 products.
Products include Canonical Ubuntu Linux, Mozilla Firefox.
How do I fix CVE-2018-18503?
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-2018-18503 being exploited?
There is no known exploitation of CVE-2018-18503 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-cgpr-293c-5r54, UBUNTU-CVE-2018-18503.