CVE-2016-10124

Publication date 9 January 2017

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.6 · High

Score breakdown

Description

An issue was discovered in Linux Containers (LXC) before 2016-02-22. When executing a program via lxc-attach, the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to push characters into the terminal's input buffer, allowing an attacker to escape the container.

Status

Package Ubuntu Release Status
lxc 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Fixed 1.0.10-0ubuntu1.1
12.04 LTS precise Ignored end of life

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
lxc

Severity score breakdown

Parameter Value
Base score 8.6 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Changed
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

Other references