CVE-2018-18504 Use after free in n/a
An attacker can trigger a crash and read freed memory in Firefox via texture client operations, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-18504?
CVE-2018-18504 is a critical use after free vulnerability in Canonical Ubuntu Linux, published on 5 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A crash and out-of-bounds read can occur when the buffer of a texture client is freed while it is still in use during graphic operations. This results is a potentially exploitable crash and the possibility of reading from the memory of the freed buffers. This vulnerability affects Firefox < 65.
Weakness: CWE-125
Which versions are affected by CVE-2018-18504?
It affects 2 products.
Products include Canonical Ubuntu Linux, Mozilla Firefox.
How do I fix CVE-2018-18504?
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-2018-18504 being exploited?
There is no known exploitation of CVE-2018-18504 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-fp7v-m5c3-w328, UBUNTU-CVE-2018-18504.