Date: Mon, 15 Oct 2012 15:50:42 -0500 From: Raphael Geissert <geissert@...ian.org> To: oss-security@...ts.openwall.com Subject: CVE-2012-2248: isc-dhcp, Debian-specific: build path included in PATH 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. 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. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=690532 Cheers, -- Raphael Geissert - Debian Developer www.debian.org - get.debian.net
Powered by blists - more mailing lists
Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.