From 6246942d377bd9ed665a4ac448120352454dd83d Mon Sep 17 00:00:00 2001 From: baude Date: Wed, 24 Oct 2018 10:39:12 -0500 Subject: Increase security and performance when looking up groups We implement the securejoin method to make sure the paths to /etc/passwd and /etc/group are not symlinks to something naughty or outside the container image. And then instead of actually chrooting, we use the runc functions to get information about a user. The net result is increased security and a a performance gain from 41ms to 100us. Signed-off-by: baude --- .../github.com/cyphar/filepath-securejoin/LICENSE | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 vendor/github.com/cyphar/filepath-securejoin/LICENSE (limited to 'vendor/github.com/cyphar/filepath-securejoin/LICENSE') diff --git a/vendor/github.com/cyphar/filepath-securejoin/LICENSE b/vendor/github.com/cyphar/filepath-securejoin/LICENSE new file mode 100644 index 000000000..bec842f29 --- /dev/null +++ b/vendor/github.com/cyphar/filepath-securejoin/LICENSE @@ -0,0 +1,28 @@ +Copyright (C) 2014-2015 Docker Inc & Go Authors. All rights reserved. +Copyright (C) 2017 SUSE LLC. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -- cgit v1.2.3-54-g00ecf