| Description: | Summary:
The remote host is missing an update for the Debian 'busybox' package(s) announced via the DLA-1445-1 advisory.
Vulnerability Insight:
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.
For Debian 8 Jessie, these problems have been fixed in version 1:1.22.0-9+deb8u2.
We recommend that you upgrade your busybox packages.
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]
Affected Software/OS:
'busybox' package(s) on Debian 8.
Solution:
Please install the updated package(s).
CVSS Score:
7.5
CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
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