CVE-2015-4497 Use after free in n/a
Remote attackers can execute arbitrary code via a use-after-free flaw in Firefox's Canvas implementation triggered by CSS and resize events.
- 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-2015-4497?
CVE-2015-4497 is a critical use after free vulnerability in Mozilla Firefox, published on 29 Aug 2015. 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
Use-after-free vulnerability in the CanvasRenderingContext2D implementation in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to execute arbitrary code by leveraging improper interaction between resize events and changes to Cascading Style Sheets (CSS) token sequences for a CANVAS element.
Which versions are affected by CVE-2015-4497?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2015-4497?
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-2015-4497 being exploited?
There is no known exploitation of CVE-2015-4497 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-v9wp-mjxj-3vqc, UBUNTU-CVE-2015-4497.