CVE-2021-43082CWE-120

heap-buffer-overflow with stats-over-http plugin

published November 3, 2021

CVSS
—
EPSS
2%
Percentile
83.9
In the wild
Unconfirmed
What it is

⚠️ A classic buffer overflow is lurking in Apache Traffic Server 9.1.0! This vulnerability lets attackers overwrite memory like a game of Jenga where one wrong move collapses everything. 🚨 Think of it like trying to shove too many clothes into an already full suitcase. Eventually, something has to give, and in this case, that's memory! If you cram in too much without checking, you risk breaking open the seams and spilling everything out. An attacker could exploit this to corrupt memory, leading to unpredictable behavior, crashes, or even unauthorized actions. This could mean the difference between smooth server performance and a disastrous meltdown. Immediate attention is important to ensure everything stays on track!

Put simply

Think of it like trying to shove too many clothes into an already full suitcase. Eventually, something has to give, and in this case, that's memory! If you cram in too much without checking, you risk breaking open the seams and spilling everything out. This vulnerability embodies a classic buffer overflow, where the stats-over-http plugin fails to check input sizes before copying data, allowing an attacker to overwrite critical memory locations.

What to do

An attacker could exploit this to corrupt memory, leading to unpredictable behavior, crashes, or even unauthorized actions. This could mean the difference between smooth server performance and a disastrous meltdown. Immediate attention is important to ensure everything stays on track! To protect yourself, update Apache Traffic Server to the latest version as soon as it becomes available. Regularly audit your plugins and ensure proper input validation to prevent similar issues in the future. Staying proactive is key! You've got this! Follow these steps, and you'll fortify your server against this sneaky bug! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02407 · 83.9th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2021-11-03T15:20Z
EPSS history
Timeline
  • 03 NOV 15:20Z
    heap-buffer-overflow with stats-over-http plugin
    cvelistv5