CVE-2012-4202

Heap-based buffer overflow in the image::RasterImage::DrawFrameTo function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before…

published November 21, 2012

CVSS
—
EPSS
11%
Percentile
95.9
In the wild
Unconfirmed
What it is

⚠️ A crafty GIF could lead to a heap of trouble! This heap-based buffer overflow in Firefox and friends lets attackers execute arbitrary code just by tricking users into viewing a manipulated image. 🎨 Think of this as a sneaky delivery driver who swaps out a harmless package with a ticking time bomb — it looks innocent, but once it’s in your hands, chaos ensues! An attacker could exploit this vulnerability by sending a specially crafted GIF to unsuspecting users, potentially leading to remote code execution. It’s like opening a door to your computer that you didn’t even know was there, giving the attacker free rein to manipulate your system!

Put simply

Think of this as a sneaky delivery driver who swaps out a harmless package with a ticking time bomb — it looks innocent, but once it’s in your hands, chaos ensues! This vulnerability in Mozilla products arises from improper handling of GIF images in the 'DrawFrameTo' function, which allows for overflow in the memory heap, leading to arbitrary code execution when crafted images are processed.

What to do

An attacker could exploit this vulnerability by sending a specially crafted GIF to unsuspecting users, potentially leading to remote code execution. It’s like opening a door to your computer that you didn’t even know was there, giving the attacker free rein to manipulate your system! Update Mozilla Firefox to version 17.0 or later, Thunderbird to 17.0 or later, and SeaMonkey to 2.14 or later to close this security hole. Always be cautious about the images you open and keep your software up to date! You've got this! Keep your systems secure and stay vigilant to protect against sneaky exploits. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.11079 · 95.9th percentile
Published
2012-11-21T11:00Z
EPSS history
Timeline
  • 21 NOV 11:00Z
    Heap-based buffer overflow in the image::RasterImage::DrawFrameTo function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before…
    cvelistv5