CVE-2017-12762

In /drivers/isdn/i4l/isdn_net.c: A user-controlled buffer is copied into a local buffer of constant size using strcpy without a length check which can cause a…

published August 9, 2017

CVSS
—
EPSS
5%
Percentile
92.5
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow is lurking in the Linux kernel! This flaw lets user-controlled data overflow a local buffer in `isdn_net.c`, potentially leading to chaos. 🔥 Think of it like trying to fit a double cheeseburger in a single burger box! If you force it in, the box explodes, spilling that delicious mess everywhere. This vulnerability allows attackers to stuff more data than the system can handle, causing it to spill out unexpectedly. The consequences of this buffer overflow could be pretty messy. An attacker could exploit this to crash the system or even execute arbitrary code, potentially leading to unauthorized access or disruption of services. It's not just a minor hiccup; it could lead to serious system instability!

Put simply

Think of it like trying to fit a double cheeseburger in a single burger box! If you force it in, the box explodes, spilling that delicious mess everywhere. This vulnerability allows attackers to stuff more data than the system can handle, causing it to spill out unexpectedly. This vulnerability occurs because the `strcpy` function copies user-controlled data into a fixed-size buffer without checking the length, which can cause a buffer overflow. It affects the Linux kernel versions 4.9, 4.12, 3.18, and 4.4.

What to do

The consequences of this buffer overflow could be pretty messy. An attacker could exploit this to crash the system or even execute arbitrary code, potentially leading to unauthorized access or disruption of services. It's not just a minor hiccup; it could lead to serious system instability! To safeguard your system, it’s crucial to upgrade to a patched version of the Linux kernel that addresses this issue. Be sure to review the kernel release notes and apply any necessary updates to ensure no vulnerable versions are running. Regularly audit your systems for compliance! You've got this! With the right actions, you'll fortify your defenses and keep your systems safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.05233 · 92.5th percentile
Published
2017-08-09T21:00Z
EPSS history
Timeline
  • 09 AUG 21:00Z
    In /drivers/isdn/i4l/isdn_net.c: A user-controlled buffer is copied into a local buffer of constant size using strcpy without a length check which can cause a…
    cvelistv5