dpkg Source Package Header Line Processing Local Directory Traversal Vulnerability

Bugtraq ID:	67725
Class:	Input Validation Error
CVE:	CVE-2014-3864
Remote:	No
Local:	Yes
Published:	Apr 30 2014 12:00AM
Updated:	Apr 13 2015 09:51PM
Credit:	Raphael Geissert
Vulnerable:	Ubuntu Ubuntu Linux 14.04 LTS Ubuntu Ubuntu Linux 13.10 Ubuntu Ubuntu Linux 12.04 LTS i386 Ubuntu Ubuntu Linux 12.04 LTS amd64 Ubuntu Ubuntu Linux 10.04 sparc Ubuntu Ubuntu Linux 10.04 powerpc Ubuntu Ubuntu Linux 10.04 i386 Ubuntu Ubuntu Linux 10.04 ARM Ubuntu Ubuntu Linux 10.04 amd64 Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 arm Debian Linux 6.0 amd64 Debian dpkg 1.16.12 Debian dpkg 1.3 Debian dpkg 1.15.8.13
Not Vulnerable:

dpkg Source Package Header Line Processing Local Directory Traversal Vulnerability

dpkg is prone to a local directory-traversal vulnerability because it fails to sufficiently sanitize user-supplied input.

Exploiting this issue will allow local attackers to modify files outside the destination directory and possibly gain access to the system.

dpkg 1.3.0 is vulnerable; other versions may also be affected.

dpkg Source Package Header Line Processing Local Directory Traversal Vulnerability

The researcher has created a functional exploit package to demonstrate the issue. Please see the references for more information.

dpkg Source Package Header Line Processing Local Directory Traversal Vulnerability

Solution:
Currently, we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

dpkg Source Package Header Line Processing Local Directory Traversal Vulnerability

References:

• dpkg Package Homepage (Debian)
  
• dpkg-source: Directory traversal on unpack through missing --- header line (Debian)