CVE-2009-1571

Use-after-free vulnerability in the HTML parser in Mozilla Firefox 3.0.x before 3.0.18 and 3.5.x before 3.5.8, Thunderbird before 3.0.2, and SeaMonkey before…

published February 21, 2010

CVSS
—
EPSS
7%
Percentile
93.8
In the wild
Unconfirmed
What it is

🚨 A sneaky use-after-free vulnerability in Mozilla Firefox could let attackers execute arbitrary code when memory gets tight! 🔥 Think of it like a waiter trying to serve a dish that's already been cleared from the table. If the kitchen isn't careful, they might end up serving something that shouldn't be on the menu at all! This could lead to remote code execution, putting users at risk as an attacker could gain control of their systems. While no widespread exploits have been reported, the potential danger is absolutely devastating.

Put simply

Think of it like a waiter trying to serve a dish that's already been cleared from the table. If the kitchen isn't careful, they might end up serving something that shouldn't be on the menu at all! This vulnerability occurs in the HTML parser of Firefox, Thunderbird, and SeaMonkey, where freed objects are accessed in low-memory situations, leading to arbitrary code execution.

What to do

This could lead to remote code execution, putting users at risk as an attacker could gain control of their systems. While no widespread exploits have been reported, the potential danger is absolutely devastating. To stay safe, upgrade to Mozilla Firefox 3.0.18, 3.5.8, Thunderbird 3.0.2, or SeaMonkey 2.0.3 or later. Regularly check for updates and consider implementing additional memory management practices to minimize risks. You've got this! Stay vigilant and keep your systems updated to stay ahead of potential threats! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.06515 · 93.8th percentile
Published
2010-02-21T17:00Z
EPSS history
Timeline
  • 21 FEB 17:00Z
    Use-after-free vulnerability in the HTML parser in Mozilla Firefox 3.0.x before 3.0.18 and 3.5.x before 3.5.8, Thunderbird before 3.0.2, and SeaMonkey before…
    cvelistv5