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Arbitrary Code Injection Affecting busybox package, versions <1:1.21.0-1ubuntu1.4

medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.52% (77th percentile)
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NVD
8.8 high
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Red Hat
4.8 medium
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SUSE
7.8 high

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  • Snyk ID SNYK-UBUNTU1404-BUSYBOX-379211
  • published 20 Nov 2017
  • disclosed 20 Nov 2017
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Introduced: 20 Nov 2017

CVE-2017-16544 Open this link in a new tab
CWE-94 Open this link in a new tab

How to fix?

Upgrade Ubuntu:14.04 busybox to version 1:1.21.0-1ubuntu1.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

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.

References