CVE-2012-4181

Use-after-free vulnerability in the nsSMILAnimationController::DoSample function in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird…

published October 10, 2012

CVSS
—
EPSS
5%
Percentile
91.9
In the wild
Unconfirmed
What it is

⚠️ A sneaky use-after-free vulnerability lurks in Firefox and Thunderbird up to version 16.0 — a potential access point for attackers to unleash chaos! 🔥 Think of a library where a book is checked out but mistakenly left on the shelf for others to grab. If someone tries to read that book while it's still being processed as borrowed, they could stumble upon some sensitive information or even rewrite the story! If exploited, this vulnerability could allow an attacker to execute arbitrary code or cause a denial of service, leading to heap memory corruption. This could not only disrupt your browsing experience but potentially compromise your system's integrity and security!

Put simply

Think of a library where a book is checked out but mistakenly left on the shelf for others to grab. If someone tries to read that book while it's still being processed as borrowed, they could stumble upon some sensitive information or even rewrite the story! The use-after-free flaw in Mozilla's nsSMILAnimationController::DoSample function allows an attacker to manipulate memory that has already been freed, leading to unpredictable behavior or code execution.

What to do

If exploited, this vulnerability could allow an attacker to execute arbitrary code or cause a denial of service, leading to heap memory corruption. This could not only disrupt your browsing experience but potentially compromise your system's integrity and security! Upgrade your Firefox or Thunderbird to version 16.0 or later, or if you're using the ESR versions, ensure you're on at least 10.0.8. Stay vigilant by keeping your software up-to-date regularly! You can tackle this vulnerability! Stay proactive, and you'll ensure your system remains secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04803 · 91.9th percentile
Published
2012-10-10T17:00Z
EPSS history
Timeline
  • 10 OCT 17:00Z
    Use-after-free vulnerability in the nsSMILAnimationController::DoSample function in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird…
    cvelistv5