Arch Linux Security Advisory ASA-201803-1
========================================
Severity: High
Date    : 2018-03-01
CVE-ID  : CVE-2017-16544
Package : busybox
Type    : arbitrary code execution
Remote  : No
Link    : https://security.archlinux.org/AVG-512

Summary
======
The package busybox before version 1.28.1-1 is vulnerable to arbitrary
code execution.

Resolution
=========
Upgrade to 1.28.1-1.

# pacman -Syu "busybox>=1.28.1-1"

The problem has been fixed upstream in version 1.28.1.

Workaround
=========
None.

Description
==========
In the add_match function in libbb/lineedit.c in BusyBox through
1.27.2, the tab autocomplete feature of the shell, used to get a list
of filenames in a directory, does not sanitize filenames and results in
executing any escape sequence in the terminal. This could potentially
result in code execution, arbitrary file writes, or other attacks.

Impact
=====
An attacker is able to execute arbitrary code by tricking the user into
auto-completing a crafted filename.

References
=========
https://bugs.archlinux.org/task/56391
https://git.busybox.net/busybox/commit/?id=c3797d40a1c57352192c6106cc0f435e7d9c11e8
https://www.paloaltonetworks.com/prisma/cloud
https://security.archlinux.org/CVE-2017-16544

ArchLinux: 201803-1: busybox: arbitrary code execution

March 5, 2018

Summary

In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary file writes, or other attacks.

Resolution

Upgrade to 1.28.1-1. # pacman -Syu "busybox>=1.28.1-1"
The problem has been fixed upstream in version 1.28.1.

References

https://bugs.archlinux.org/task/56391 https://git.busybox.net/busybox/commit/?id=c3797d40a1c57352192c6106cc0f435e7d9c11e8 https://www.paloaltonetworks.com/prisma/cloud https://security.archlinux.org/CVE-2017-16544

Severity
Package : busybox
Type : arbitrary code execution
Remote : No
Link : https://security.archlinux.org/AVG-512

Workaround

None.

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