oss-sec mailing list archives
Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH
From: Michael Gilbert <mgilbert () debian org>
Date: Wed, 17 Oct 2012 15:46:55 -0400
On Wed, Oct 17, 2012 at 3:42 PM, Kurt Seifried wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/15/2012 02:50 PM, Raphael Geissert wrote:Hi, Michael Stapelberg, Tollef Fog Heen, and Michael Biebl discovered that dhclient was setting dhclient-script's PATH to one that included a subdirectory of the build directory[1]. This issue is caused by the way isc-dhcp is packaged in Debian. At least two versions of isc-dhcp for the amd64 (x86_64) architecture in Debian were found two be setting PATH to a subdirectory of /home/zero79/, which would allow a user with such HOME directory to be able to execute code as root. To clarify the bug report: it is not specific to samba or hooks in general, PATH is injected in the environment passed to the execve() call that executes dhclient-script. Since this issue doesn't affect the stable release, there won't be a DSA. This email is just a heads up. [1]http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=690532 Cheers,Was this software released however?
It was uploaded to and affected Debian testing and unstable. Testing has not yet been officially "released", but some people use testing as if it were an official release. Unstable never gets released. Best wishes, Mike
Current thread:
- CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Raphael Geissert (Oct 15)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Kurt Seifried (Oct 17)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Michael Gilbert (Oct 17)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Kurt Seifried (Oct 17)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Michael Gilbert (Oct 17)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Kurt Seifried (Oct 17)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Michael Gilbert (Oct 18)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Kurt Seifried (Oct 18)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Michael Gilbert (Oct 18)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Henri Salo (Oct 18)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Moritz Muehlenhoff (Oct 18)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Michael Gilbert (Oct 17)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Kurt Seifried (Oct 17)
- Re: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH Tim Brown (Oct 20)