A copy of Go's archive/tar packge was vendored with a patch applied to
mitigate CVE-2019-14271. Vendoring standard library packages is not
supported by Go in module-aware mode, which is getting in the way of
maintenance. A different approach to mitigate the vulnerability is
needed which does not involve vendoring parts of the standard library.
glibc implements name service lookups such as users, groups and DNS
using a scheme known as Name Service Switch. The services are
implemented as modules, shared libraries which glibc dynamically links
into the process the first time a function requiring the module is
called. This is the crux of the vulnerability: if a process linked
against glibc chroots, then calls one of the functions implemented with
NSS for the first time, glibc may load NSS modules out of the chrooted
filesystem.
The API underlying the `docker cp` command is implemented by forking a
new process which chroots into the container's rootfs and writes a tar
stream of files from the container over standard output. It utilizes the
Go standard library's archive/tar package to write the tar stream. It
makes use of the tar.FileInfoHeader function to construct a tar.Header
value from an fs.FileInfo value. In modern versions of Go on *nix
platforms, FileInfoHeader will attempt to resolve the file's UID and GID
to their respective user and group names by calling the os/user
functions LookupId and LookupGroupId. The cgo implementation of os/user
on *nix performs lookups by calling the corresponding libc functions. So
when linked against glibc, calls to tar.FileInfoHeader after the
process has chrooted into the container's rootfs can have the side
effect of loading NSS modules from the container! Without any
mitigations, a malicious container image author can trivially get
arbitrary code execution by leveraging this vulnerability and escape the
chroot (which is not a sandbox) into the host.
Mitigate the vulnerability without patching or forking archive/tar by
hiding the OS-dependent file info from tar.FileInfoHeader which it needs
to perform the lookups. Without that information available it falls back
to populating the tar.Header with only the information obtainable
directly from the FileInfo value without making any calls into os/user.
Fixes#42402
Signed-off-by: Cory Snider <csnider@mirantis.com>
Includes security fixes for crypto/elliptic (CVE-2022-23806), math/big (CVE-2022-23772),
and cmd/go (CVE-2022-23773).
go1.17.7 (released 2022-02-10) includes security fixes to the crypto/elliptic,
math/big packages and to the go command, as well as bug fixes to the compiler,
linker, runtime, the go command, and the debug/macho, debug/pe, and net/http/httptest
packages. See the Go 1.17.7 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.17.7+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.17.6...go1.17.7
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Looks like this may be needed for Go 1.18
Also updating the golangci-lint configuration to account for updated
exclusion rules.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- use `vendor.mod` instead of `go.mod` to avoid issues to do with
use of CalVer, not SemVer
- ensure most of the dependency versions do not change
- only zookeeper client has to change (via docker/libkv#218) as
previously used version is no longer maintained and has missing
dependencies
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.17.3 (released 2021-11-04) includes security fixes to the archive/zip and
debug/macho packages, as well as bug fixes to the compiler, linker, runtime, the
go command, the misc/wasm directory, and to the net/http and syscall packages.
See the Go 1.17.3 milestone on our issue tracker for details.
From the announcement e-mail:
[security] Go 1.17.3 and Go 1.16.10 are released
We have just released Go versions 1.17.3 and 1.16.10, minor point releases.
These minor releases include two security fixes following the security policy:
- archive/zip: don't panic on (*Reader).Open
Reader.Open (the API implementing io/fs.FS introduced in Go 1.16) can be made
to panic by an attacker providing either a crafted ZIP archive containing
completely invalid names or an empty filename argument.
Thank you to Colin Arnott, SiteHost and Noah Santschi-Cooney, Sourcegraph Code
Intelligence Team for reporting this issue. This is CVE-2021-41772 and Go issue
golang.org/issue/48085.
- debug/macho: invalid dynamic symbol table command can cause panic
Malformed binaries parsed using Open or OpenFat can cause a panic when calling
ImportedSymbols, due to an out-of-bounds slice operation.
Thanks to Burak Çarıkçı - Yunus Yıldırım (CT-Zer0 Crypttech) for reporting this
issue. This is CVE-2021-41771 and Go issue golang.org/issue/48990.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.17.2 (released 2021-10-07) includes a security fix to the linker and misc/wasm
directory, as well as bug fixes to the compiler, the runtime, the go command, and
to the time and text/template packages. See the Go 1.17.2 milestone on our issue
tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.17.2+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- using v2.1.0 for the "v1" registry (last release with only v1)
- using v2.3.0 as "current" version (was v2.3.0-rc.0)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This moves installers that are only used during CI into the Dockerfile. Some
installers are still used in the release-pipeline, so keeping thos for now.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
zstd is a compression algorithm that has a very fast decoder, while
providing also good compression ratios. The fast decoder makes it
suitable for container images, as decompressing the tarballs is a very
expensive operation.
https://github.com/opencontainers/image-spec/pull/788 added support
for zstd to the OCI image specs.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This includes additional fixes for CVE-2021-39293.
go1.17.1 (released 2021-09-09) includes a security fix to the archive/zip package,
as well as bug fixes to the compiler, linker, the go command, and to the crypto/rand,
embed, go/types, html/template, and net/http packages. See the Go 1.17.1 milestone
on the issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.17.1+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The golangci-lint, gotestsum, shfmt, and vndr utilities should generally
be ok to be pinned by version instead of a specific sha. Also rename
the corresponding env-vars / build-args accordingly:
- GOLANGCI_LINT_COMMIT -> GOLANGCI_LINT_VERSION
- GOTESTSUM_COMMIT -> GOTESTSUM_VERSION
- SHFMT_COMMIT -> SHFMT_VERSION
- VNDR_COMMIT -> VNDR_VERSION
- CONTAINERD_COMMIT -> CONTAINERD_VERSION
- RUNC_COMMIT -> RUNC_VERSION
- ROOTLESS_COMMIT -> ROOTLESS_VERSION
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Update the frozen images to also be based on Debian bullseye. Using the "slim"
variant (which looks to have all we're currently using), and remove the
buildpack-dep frozen image.
The buildpack-dep image is quite large, and it looks like we only use it to
compile some C binaries, which should work fine on a regular debian image;
docker build -t debian:bullseye-slim-gcc -<<EOF
FROM debian:bullseye-slim
RUN apt-get update && apt-get install -y gcc libc6-dev --no-install-recommends
EOF
docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
debian bullseye-slim-gcc 1851750242af About a minute ago 255MB
buildpack-deps bullseye fe8fece98de2 2 days ago 834MB
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
commit 7168d98c43 removed these, but
we overlooked that the same stage is used to build runc as well, so
we likely need these.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.16.7 (released 2021-08-05) includes a security fix to the net/http/httputil
package, as well as bug fixes to the compiler, the linker, the runtime, the go
command, and the net/http package. See the Go 1.16.7 milestone on the issue
tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.16.7+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
It turns out libseccomp is not used for building docker at all.
It is only used for building runc (and needs libseccomp > 2.4)
Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com>
The github.com/BurntSushi/toml project is no longer maintained,
and containerd is switching to this project instead, so start
moving our code as well.
This patch only changes the binary used during validation (tbh,
we could probably remove this validation step, but leaving that
for now).
I manually verified that the hack/verify/toml still works by adding a commit
that makes the MAINTAINERS file invalid;
diff --git a/MAINTAINERS b/MAINTAINERS
index b739e7e20c..81ababd8de 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -23,7 +23,7 @@
# a subsystem, they are responsible for doing so and holding the
# subsystem maintainers accountable. If ownership is unclear, they are the de facto owners.
- people = [
+ people =
"akihirosuda",
"anusha",
"coolljt0725",
Running `hack/verify/toml` was able to detect the broken format;
hack/validate/toml
(27, 4): keys cannot contain , characterThese files are not valid TOML:
- MAINTAINERS
Please reformat the above files as valid TOML
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Fixes#41704
The latest released versions of the static binaries (20.10.3) are still unable
to use faccessat2 with musl-1.2.2 even though this was addressed in #41353 and
related issues. The underlying cause seems to be that the build system
here still uses the default version of libseccomp shipped with buster.
An updated version is available in buster backports:
https://packages.debian.org/buster-backports/libseccomp-dev
Signed-off-by: Jeremy Huntwork <jhuntwork@lightcubesolutions.com>
The `RUN --mount` options have been promoted to the stable channel,
so we can switch from "experimental" to "stable".
Note that the syntax directive should no longer be needed now, but
it's good practice to add a syntax-directive, to allow building on
older versions of docker.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
