[manjaro-security] [arch-security] [ASA-201611-11] tar: arbitrary file overwrite
anthraxx at archlinux.org
Thu Nov 3 16:06:20 CET 2016
Arch Linux Security Advisory ASA-201611-11
Date : 2016-11-03
CVE-ID : CVE-2016-6321
Package : tar
Type : arbitrary file overwrite
Remote : Yes
Link : https://wiki.archlinux.org/index.php/CVE
The package tar before version 1.29-2 is vulnerable to arbitrary file
Upgrade to 1.29-2.
# pacman -Syu "tar>=1.29-2"
The problem has been fixed upstream but no release is available yet.
The GNU tar archiver attempts to avoid path traversal attacks by
removing offending parts of the element name at extract. This
sanitizing leads to a vulnerability where the attacker can bypass the
path name(s) specified on the command line leading to arbitrary
overwrite of files and directories inside the target directory.
A remote attacker is able to use a specially crafted tar archive that,
when extracted by the victim, replaces files and directories regardless
of the path name(s) specified.
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