Debian LTS Advisory ([SECURITY] [DLA 1445-1] busybox security update)

Published: 2018-07-26 22:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
busybox on Debian Linux

For Debian 8 'Jessie', these problems have been fixed in version 1:1.22.0-9+deb8u2. We recommend that you upgrade your busybox Linux Distribution Packages.

Busybox, utility programs for small and embedded systems, was affected by several security vulnerabilities. The Common Vulnerabilities and Exposures project identifies the following issues. CVE-2011-5325 A path traversal vulnerability was found in Busybox implementation of tar. tar will extract a symlink that points outside of the current working directory and then follow that symlink when extracting other files. This allows for a directory traversal attack when extracting untrusted tarballs. CVE-2013-1813 When device node or symlink in /dev should be created inside 2-or-deeper subdirectory (/dev/dir1/dir2.../node), the intermediate directories are created with incorrect permissions. CVE-2014-4607 An integer overflow may occur when processing any variant of a 'literal run' in the lzo1x_decompress_safe function. Each of these three locations is subject to an integer overflow when processing zero bytes. This exposes the code that copies literals to memory corruption. CVE-2014-9645 The add_probe function in modutils/modprobe.c in BusyBox allows local users to bypass intended restrictions on loading kernel modules via a / (slash) character in a module name, as demonstrated by an 'ifconfig /usbserial up' command or a 'mount -t /snd_pcm none /' command. CVE-2016-2147 Integer overflow in the DHCP client (udhcpc) in BusyBox allows remote attackers to cause a denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds heap write. CVE-2016-2148 Heap-based buffer overflow in the DHCP client (udhcpc) in BusyBox allows remote attackers to have unspecified impact via vectors involving OPTION_6RD parsing. CVE-2017-15873 The get_next_block function in archival/libarchive /decompress_bunzip2.c in BusyBox has an Integer Overflow that may lead to a write access violation. CVE-2017-16544 In the add_match function in libbb/lineedit.c in BusyBox, 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. CVE-2018-1000517 BusyBox contains a Buffer Overflow vulnerability in Busybox wget that can result in a heap-based buffer overflow. This attack appears to be exploitable via network connectivity. CVE-2015-9621 Unziping a specially crafted zip file results in a computation of an invalid pointer and a crash reading an invalid address.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)


CVSS Score
Debian Local Security Checks

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