CVE-2013-0763

Use-after-free vulnerability in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.1, and…

published January 13, 2013

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

⚠️ A tiny glitch in memory management is a big deal! This use-after-free vulnerability in Mozilla Firefox and Thunderbird can let crafty attackers execute arbitrary code. 🤔 Think of this like a cafeteria where leftover food is still being served long after the lunch crowd has gone. If someone sneaks in and grabs a half-eaten sandwich, they could potentially get more than just a snack – they could tamper with the entire serving table! An attacker could exploit this vulnerability to gain control of your system or cause a denial of service, crashing your browser or email client. Imagine your computer freezing up just when you need it most, or worse, having someone else take the wheel without you knowing!

Put simply

Think of this like a cafeteria where leftover food is still being served long after the lunch crowd has gone. If someone sneaks in and grabs a half-eaten sandwich, they could potentially get more than just a snack – they could tamper with the entire serving table! This use-after-free vulnerability occurs due to mishandling memory related to Mesa drivers and resized WebGL canvases in Firefox and Thunderbird. Attackers can leverage these flaws to manipulate memory allocation, leading to unauthorized code execution.

What to do

An attacker could exploit this vulnerability to gain control of your system or cause a denial of service, crashing your browser or email client. Imagine your computer freezing up just when you need it most, or worse, having someone else take the wheel without you knowing! To keep your systems safe, update to Mozilla Firefox 18.0, Thunderbird 17.0.2, or the latest versions of SeaMonkey immediately. Regularly check for updates to ensure you are protected against these types of vulnerabilities. 🛡️ You've got this! Follow these steps, and you'll be riding the secure wave in no time! 🌊

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04395 · 91.2th percentile
Published
2013-01-13T20:00Z
EPSS history
Timeline
  • 13 JAN 20:00Z
    Use-after-free vulnerability in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.1, and…
    cvelistv5