CVE-2012-1946

Use-after-free vulnerability in the nsINode::ReplaceOrInsertBefore function in Mozilla Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird…

published June 5, 2012

CVSS
—
EPSS
4%
Percentile
91.2
In the wild
Unconfirmed
What it is

⚠️ A sneaky use-after-free vulnerability lurks in Mozilla Firefox and Thunderbird, potentially letting remote attackers execute arbitrary code with a mere document change! 🔥 Think of it like a chef who accidentally tosses out the recipe right before the dish is served. If a new ingredient is added without verifying it, it could spoil the entire meal! This means that an attacker could potentially take control of a user’s session, leading to unauthorized access and far-reaching consequences. Imagine someone slipping a secret ingredient into your favorite dish, altering it in ways you never intended!

Put simply

Think of it like a chef who accidentally tosses out the recipe right before the dish is served. If a new ingredient is added without verifying it, it could spoil the entire meal! This vulnerability arises from improper handling of memory during node replacement or insertion in the affected applications, allowing for arbitrary code execution if exploited.

What to do

This means that an attacker could potentially take control of a user’s session, leading to unauthorized access and far-reaching consequences. Imagine someone slipping a secret ingredient into your favorite dish, altering it in ways you never intended! To protect yourself, ensure you update to the latest versions of Firefox (post 12.0), Thunderbird (post 12.0), and SeaMonkey (post 2.10). Regularly check for updates and stay informed about security patches to mitigate this risk. You’ve got this! Stay proactive with updates and keep your digital kitchen safe from unwanted surprises! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04401 · 91.2th percentile
Published
2012-06-05T23:00Z
EPSS history
Timeline
  • 05 JUN 23:00Z
    Use-after-free vulnerability in the nsINode::ReplaceOrInsertBefore function in Mozilla Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird…
    cvelistv5