CVE-2020-25412

com_line() in command.c in gnuplot 5.4 leads to an out-of-bounds-write from strncpy() that may lead to arbitrary code execution

published September 16, 2020

CVSS
—
EPSS
3%
Percentile
85.4
In the wild
Unconfirmed
What it is

⚠️ An out-of-bounds write in gnuplot 5.4 could lead to arbitrary code execution! Picture that as a mischievous chef spilling ingredients outside the kitchen — it’s a recipe for disaster. 🔥 Think of it like a restaurant where the chef accidentally adds too much salt to a dish—overshooting the boundaries of what’s acceptable could ruin the entire meal. In this case, it’s data being spilled where it shouldn’t be, allowing unwanted actions to occur. If left unaddressed, this vulnerability could allow an attacker to execute arbitrary code, potentially taking full control of the system running gnuplot. That’s like giving a stranger the keys to your house and hoping they don’t help themselves to your valuables!

Put simply

Think of it like a restaurant where the chef accidentally adds too much salt to a dish—overshooting the boundaries of what’s acceptable could ruin the entire meal. In this case, it’s data being spilled where it shouldn’t be, allowing unwanted actions to occur. This issue arises from an out-of-bounds write in the com_line() function within command.c, triggered by improper handling of the strncpy() function. When the input exceeds expected limits, it can corrupt memory and lead to arbitrary code execution.

What to do

If left unaddressed, this vulnerability could allow an attacker to execute arbitrary code, potentially taking full control of the system running gnuplot. That’s like giving a stranger the keys to your house and hoping they don’t help themselves to your valuables! Make sure you’re using gnuplot version 5.4 or later, where this vulnerability is fixed. Regularly audit your system for outdated software, and consider implementing stricter input validation to mitigate risks. You've got this! Stay vigilant, follow these recommendations, and you'll be a security hero in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02631 · 85.4th percentile
Published
2020-09-16T13:53Z
EPSS history
Timeline
  • 16 SEP 13:53Z
    com_line() in command.c in gnuplot 5.4 leads to an out-of-bounds-write from strncpy() that may lead to arbitrary code execution
    cvelistv5