containerd/contrib
Sebastiaan van Stijn 2ac9968401
replace uses of os/exec with golang.org/x/sys/execabs
Go 1.15.7 contained a security fix for CVE-2021-3115, which allowed arbitrary
code to be executed at build time when using cgo on Windows. This issue also
affects Unix users who have “.” listed explicitly in their PATH and are running
“go get” outside of a module or with module mode disabled.

This issue is not limited to the go command itself, and can also affect binaries
that use `os.Command`, `os.LookPath`, etc.

From the related blogpost (ttps://blog.golang.org/path-security):

> Are your own programs affected?
>
> If you use exec.LookPath or exec.Command in your own programs, you only need to
> be concerned if you (or your users) run your program in a directory with untrusted
> contents. If so, then a subprocess could be started using an executable from dot
> instead of from a system directory. (Again, using an executable from dot happens
> always on Windows and only with uncommon PATH settings on Unix.)
>
> If you are concerned, then we’ve published the more restricted variant of os/exec
> as golang.org/x/sys/execabs. You can use it in your program by simply replacing

This patch replaces all uses of `os/exec` with `golang.org/x/sys/execabs`. While
some uses of `os/exec` should not be problematic (e.g. part of tests), it is
probably good to be consistent, in case code gets moved around.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-08-25 18:11:09 +02:00
..
ansible archive docs and point to new location 2021-08-10 15:54:06 +08:00
apparmor replace uses of os/exec with golang.org/x/sys/execabs 2021-08-25 18:11:09 +02:00
autocomplete Fix zsh autocomplete script 2020-02-11 19:56:27 +08:00
aws Move snapshotters benchmark to a separate package 2019-04-02 14:42:21 -07:00
Dockerfile.test.d/cri-in-userns Dockerfile.test: add "cri-in-userns" (aka rootless) test stage 2021-07-09 14:50:04 +09:00
fuzz replace uses of os/exec with golang.org/x/sys/execabs 2021-08-25 18:11:09 +02:00
gce Add env for SystemdCgroup driver 2021-08-16 17:27:55 +05:30
linuxkit update linuxkit readme 2021-03-01 12:00:56 +08:00
nvidia replace uses of os/exec with golang.org/x/sys/execabs 2021-08-25 18:11:09 +02:00
seccomp Run go fmt with Go 1.17 2021-08-22 09:31:50 +09:00
snapshotservice Add Cleanup to snapshot API 2020-01-07 14:59:20 -08:00
Dockerfile.test Update to Go 1.17 2021-08-17 12:27:39 -04:00
README.md Add readme to contib 2017-09-18 11:47:27 -04:00

contrib

The contrib directory contains packages that do not belong in the core containerd packages but still contribute to overall containerd usability.

Package such as Apparmor or Selinux are placed in contrib because they are platform dependent and often require higher level tools and profiles to work.

Packaging and other built tools can be added to contrib to aid in packaging containerd for various distributions.

Testing

Code in the contrib directory may or may not have been tested in the normal test pipeline for core components.