CVE-2009-0771

The layout engine in Mozilla Firefox before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey 1.1.15 allows remote attackers to cause a denial of service…

published March 5, 2009

CVSS
—
EPSS
5%
Percentile
91.6
In the wild
Unconfirmed
What it is

⚠️ A crafty memory corruption bug in older versions of Firefox and friends could lead to unexpected crashes! 🚨 Think of it like a chef who suddenly forgets a crucial ingredient while cooking, leaving the dish a bubbling mess and possibly causing the kitchen to go up in flames — that’s how this vulnerability can escalate into chaos! An attacker could potentially crash the browser or even execute arbitrary code, which could be absolutely devastating for users. This means that a simple malicious webpage could cause your whole browser to crash or allow an attacker to take control of your system!

Put simply

Think of it like a chef who suddenly forgets a crucial ingredient while cooking, leaving the dish a bubbling mess and possibly causing the kitchen to go up in flames — that’s how this vulnerability can escalate into chaos! This vulnerability arises from memory corruption and assertion failures in the layout engine, allowing remote attackers to trigger these failures through specific vectors.

What to do

An attacker could potentially crash the browser or even execute arbitrary code, which could be absolutely devastating for users. This means that a simple malicious webpage could cause your whole browser to crash or allow an attacker to take control of your system! To stay safe, users should update to the latest versions of Firefox, Thunderbird, and SeaMonkey. This will patch the vulnerability and close the door on potential exploits. If you're managing systems using these applications, make sure to deploy the updates promptly! You've got this! Stay one step ahead by keeping your software updated and secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04613 · 91.6th percentile
Published
2009-03-05T02:00Z
EPSS history
Timeline
  • 05 MAR 02:00Z
    The layout engine in Mozilla Firefox before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey 1.1.15 allows remote attackers to cause a denial of service…
    cvelistv5