CVE-2017-5226

When executing a program via the bubblewrap sandbox, the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to push characters into…

published March 29, 2017

CVSS
—
EPSS
3%
Percentile
87.8
In the wild
Unconfirmed
What it is

🚨 A clever command can break out of the bubblewrap sandbox! An attacker can exploit the TIOCSTI ioctl to push unwanted characters into the terminal's input buffer, escaping the confines of the sandbox. 🔥 Think of it like a mischievous kid sneaking out of a playpen by using a clever trick to get a parent’s attention. While the playpen is designed to keep them safe, a little ingenuity can lead to freedom and potential chaos. This vulnerability could allow an attacker to escape the sandbox and execute arbitrary commands in the parent session, leading to unauthorized access or control over the system. While it hasn't been actively exploited yet, the potential consequences could be quite severe if it were to be used maliciously.

Put simply

Think of it like a mischievous kid sneaking out of a playpen by using a clever trick to get a parent’s attention. While the playpen is designed to keep them safe, a little ingenuity can lead to freedom and potential chaos. The CVE-2017-5226 vulnerability allows a nonprivileged session to escape the bubblewrap sandbox by utilizing the TIOCSTI ioctl to manipulate the terminal’s input buffer, breaching its isolation.

What to do

This vulnerability could allow an attacker to escape the sandbox and execute arbitrary commands in the parent session, leading to unauthorized access or control over the system. While it hasn't been actively exploited yet, the potential consequences could be quite severe if it were to be used maliciously. To mitigate this risk, ensure that you are using the latest version of bubblewrap. Regularly check for updates, and consider restricting the use of `ioctl` commands in environments where sandboxing is critical. 🛡️ Don't worry, you've got this! By keeping your software updated and following security best practices, you can keep those mischievous kids—err, attackers—at bay! ⚡

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03169 · 87.8th percentile
Published
2017-03-29T00:00Z
EPSS history
Timeline
  • 29 MAR 00:00Z
    When executing a program via the bubblewrap sandbox, the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to push characters into…
    cvelistv5