Includes security fixes for net/http (CVE-2022-41717, CVE-2022-41720),
and os (CVE-2022-41720).
These minor releases include 2 security fixes following the security policy:
- os, net/http: avoid escapes from os.DirFS and http.Dir on Windows
The os.DirFS function and http.Dir type provide access to a tree of files
rooted at a given directory. These functions permitted access to Windows
device files under that root. For example, os.DirFS("C:/tmp").Open("COM1")
would open the COM1 device.
Both os.DirFS and http.Dir only provide read-only filesystem access.
In addition, on Windows, an os.DirFS for the directory \(the root of the
current drive) can permit a maliciously crafted path to escape from the
drive and access any path on the system.
The behavior of os.DirFS("") has changed. Previously, an empty root was
treated equivalently to "/", so os.DirFS("").Open("tmp") would open the
path "/tmp". This now returns an error.
This is CVE-2022-41720 and Go issue https://go.dev/issue/56694.
- net/http: limit canonical header cache by bytes, not entries
An attacker can cause excessive memory growth in a Go server accepting
HTTP/2 requests.
HTTP/2 server connections contain a cache of HTTP header keys sent by
the client. While the total number of entries in this cache is capped,
an attacker sending very large keys can cause the server to allocate
approximately 64 MiB per open connection.
This issue is also fixed in golang.org/x/net/http2 vX.Y.Z, for users
manually configuring HTTP/2.
Thanks to Josselin Costanzi for reporting this issue.
This is CVE-2022-41717 and Go issue https://go.dev/issue/56350.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.19.4
And the milestone on the issue tracker:
https://github.com/golang/go/issues?q=milestone%3AGo1.19.4+label%3ACherryPickApproved
Full diff: https://github.com/golang/go/compare/go1.19.3...go1.19.4
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This allows us to pin to a specific version of Alpine, in case the
golang:alpine image switches to a newer version, which may at times
be incompatible, e.g. see https://github.com/moby/moby/issues/44570
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
On Windows, syscall.StartProcess and os/exec.Cmd did not properly
check for invalid environment variable values. A malicious
environment variable value could exploit this behavior to set a
value for a different environment variable. For example, the
environment variable string "A=B\x00C=D" set the variables "A=B" and
"C=D".
Thanks to RyotaK (https://twitter.com/ryotkak) for reporting this
issue.
This is CVE-2022-41716 and Go issue https://go.dev/issue/56284.
This Go release also fixes https://github.com/golang/go/issues/56309, a
runtime bug which can cause random memory corruption when a goroutine
exits with runtime.LockOSThread() set. This fix is necessary to unblock
work to replace certain uses of pkg/reexec with unshared OS threads.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
From the mailing list:
We have just released Go versions 1.19.2 and 1.18.7, minor point releases.
These minor releases include 3 security fixes following the security policy:
- archive/tar: unbounded memory consumption when reading headers
Reader.Read did not set a limit on the maximum size of file headers.
A maliciously crafted archive could cause Read to allocate unbounded
amounts of memory, potentially causing resource exhaustion or panics.
Reader.Read now limits the maximum size of header blocks to 1 MiB.
Thanks to Adam Korczynski (ADA Logics) and OSS-Fuzz for reporting this issue.
This is CVE-2022-2879 and Go issue https://go.dev/issue/54853.
- net/http/httputil: ReverseProxy should not forward unparseable query parameters
Requests forwarded by ReverseProxy included the raw query parameters from the
inbound request, including unparseable parameters rejected by net/http. This
could permit query parameter smuggling when a Go proxy forwards a parameter
with an unparseable value.
ReverseProxy will now sanitize the query parameters in the forwarded query
when the outbound request's Form field is set after the ReverseProxy.Director
function returns, indicating that the proxy has parsed the query parameters.
Proxies which do not parse query parameters continue to forward the original
query parameters unchanged.
Thanks to Gal Goldstein (Security Researcher, Oxeye) and
Daniel Abeles (Head of Research, Oxeye) for reporting this issue.
This is CVE-2022-2880 and Go issue https://go.dev/issue/54663.
- regexp/syntax: limit memory used by parsing regexps
The parsed regexp representation is linear in the size of the input,
but in some cases the constant factor can be as high as 40,000,
making relatively small regexps consume much larger amounts of memory.
Each regexp being parsed is now limited to a 256 MB memory footprint.
Regular expressions whose representation would use more space than that
are now rejected. Normal use of regular expressions is unaffected.
Thanks to Adam Korczynski (ADA Logics) and OSS-Fuzz for reporting this issue.
This is CVE-2022-41715 and Go issue https://go.dev/issue/55949.
View the release notes for more information: https://go.dev/doc/devel/release#go1.19.2
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
gofumpt provides a supserset of gofmt / go fmt, but not every developer may have
it installed, so for situations where it's not available, fall back to gofmt.
As our code has been formatted with gofumpt already, in most cases contributions
will follow those formatting rules, but in some cases there may be a difference,
which would already be flagged by manual code review, but let's also enable the
gofumpt linter.
With this change, `make fmt` will use gofumpt is available; gofumpt has been
added to the dev-container, so `make -f docker.Makefile fmt` will always use it.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
From the mailing list:
We have just released Go versions 1.19.1 and 1.18.6, minor point releases.
These minor releases include 2 security fixes following the security policy:
- net/http: handle server errors after sending GOAWAY
A closing HTTP/2 server connection could hang forever waiting for a clean
shutdown that was preempted by a subsequent fatal error. This failure mode
could be exploited to cause a denial of service.
Thanks to Bahruz Jabiyev, Tommaso Innocenti, Anthony Gavazzi, Steven Sprecher,
and Kaan Onarlioglu for reporting this.
This is CVE-2022-27664 and Go issue https://go.dev/issue/54658.
- net/url: JoinPath does not strip relative path components in all circumstances
JoinPath and URL.JoinPath would not remove `../` path components appended to a
relative path. For example, `JoinPath("https://go.dev", "../go")` returned the
URL `https://go.dev/../go`, despite the JoinPath documentation stating that
`../` path elements are cleaned from the result.
Thanks to q0jt for reporting this issue.
This is CVE-2022-32190 and Go issue https://go.dev/issue/54385.
Release notes:
go1.19.1 (released 2022-09-06) includes security fixes to the net/http and
net/url packages, as well as bug fixes to the compiler, the go command, the pprof
command, the linker, the runtime, and the crypto/tls and crypto/x509 packages.
See the Go 1.19.1 milestone on the issue tracker for details.
https://github.com/golang/go/issues?q=milestone%3AGo1.19.1+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
From the mailing list:
We have just released Go versions 1.19.1 and 1.18.6, minor point releases.
These minor releases include 2 security fixes following the security policy:
- net/http: handle server errors after sending GOAWAY
A closing HTTP/2 server connection could hang forever waiting for a clean
shutdown that was preempted by a subsequent fatal error. This failure mode
could be exploited to cause a denial of service.
Thanks to Bahruz Jabiyev, Tommaso Innocenti, Anthony Gavazzi, Steven Sprecher,
and Kaan Onarlioglu for reporting this.
This is CVE-2022-27664 and Go issue https://go.dev/issue/54658.
- net/url: JoinPath does not strip relative path components in all circumstances
JoinPath and URL.JoinPath would not remove `../` path components appended to a
relative path. For example, `JoinPath("https://go.dev", "../go")` returned the
URL `https://go.dev/../go`, despite the JoinPath documentation stating that
`../` path elements are cleaned from the result.
Thanks to q0jt for reporting this issue.
This is CVE-2022-32190 and Go issue https://go.dev/issue/54385.
Release notes:
go1.18.6 (released 2022-09-06) includes security fixes to the net/http package,
as well as bug fixes to the compiler, the go command, the pprof command, the
runtime, and the crypto/tls, encoding/xml, and net packages. See the Go 1.18.6
milestone on the issue tracker for details;
https://github.com/golang/go/issues?q=milestone%3AGo1.18.6+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Update Go runtime to 1.18.5 to address CVE-2022-32189.
Full diff: https://github.com/golang/go/compare/go1.18.4...go1.18.5
--------------------------------------------------------
From the security announcement:
https://groups.google.com/g/golang-announce/c/YqYYG87xB10
We have just released Go versions 1.18.5 and 1.17.13, minor point
releases.
These minor releases include 1 security fixes following the security
policy:
encoding/gob & math/big: decoding big.Float and big.Rat can panic
Decoding big.Float and big.Rat types can panic if the encoded message is
too short.
This is CVE-2022-32189 and Go issue https://go.dev/issue/53871.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.18.5
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.18.4 (released 2022-07-12) includes security fixes to the compress/gzip,
encoding/gob, encoding/xml, go/parser, io/fs, net/http, and path/filepath
packages, as well as bug fixes to the compiler, the go command, the linker,
the runtime, and the runtime/metrics package. See the Go 1.18.4 milestone on the
issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.18.4+label%3ACherryPickApproved
This update addresses:
CVE-2022-1705, CVE-2022-1962, CVE-2022-28131, CVE-2022-30630, CVE-2022-30631,
CVE-2022-30632, CVE-2022-30633, CVE-2022-30635, and CVE-2022-32148.
Full diff: https://github.com/golang/go/compare/go1.18.3...go1.18.4
From the security announcement;
https://groups.google.com/g/golang-announce/c/nqrv9fbR0zE
We have just released Go versions 1.18.4 and 1.17.12, minor point releases. These
minor releases include 9 security fixes following the security policy:
- net/http: improper sanitization of Transfer-Encoding header
The HTTP/1 client accepted some invalid Transfer-Encoding headers as indicating
a "chunked" encoding. This could potentially allow for request smuggling, but
only if combined with an intermediate server that also improperly failed to
reject the header as invalid.
This is CVE-2022-1705 and https://go.dev/issue/53188.
- When `httputil.ReverseProxy.ServeHTTP` was called with a `Request.Header` map
containing a nil value for the X-Forwarded-For header, ReverseProxy would set
the client IP as the value of the X-Forwarded-For header, contrary to its
documentation. In the more usual case where a Director function set the
X-Forwarded-For header value to nil, ReverseProxy would leave the header
unmodified as expected.
This is https://go.dev/issue/53423 and CVE-2022-32148.
Thanks to Christian Mehlmauer for reporting this issue.
- compress/gzip: stack exhaustion in Reader.Read
Calling Reader.Read on an archive containing a large number of concatenated
0-length compressed files can cause a panic due to stack exhaustion.
This is CVE-2022-30631 and Go issue https://go.dev/issue/53168.
- encoding/xml: stack exhaustion in Unmarshal
Calling Unmarshal on a XML document into a Go struct which has a nested field
that uses the any field tag can cause a panic due to stack exhaustion.
This is CVE-2022-30633 and Go issue https://go.dev/issue/53611.
- encoding/xml: stack exhaustion in Decoder.Skip
Calling Decoder.Skip when parsing a deeply nested XML document can cause a
panic due to stack exhaustion. The Go Security team discovered this issue, and
it was independently reported by Juho Nurminen of Mattermost.
This is CVE-2022-28131 and Go issue https://go.dev/issue/53614.
- encoding/gob: stack exhaustion in Decoder.Decode
Calling Decoder.Decode on a message which contains deeply nested structures
can cause a panic due to stack exhaustion.
This is CVE-2022-30635 and Go issue https://go.dev/issue/53615.
- path/filepath: stack exhaustion in Glob
Calling Glob on a path which contains a large number of path separators can
cause a panic due to stack exhaustion.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2022-30632 and Go issue https://go.dev/issue/53416.
- io/fs: stack exhaustion in Glob
Calling Glob on a path which contains a large number of path separators can
cause a panic due to stack exhaustion.
This is CVE-2022-30630 and Go issue https://go.dev/issue/53415.
- go/parser: stack exhaustion in all Parse* functions
Calling any of the Parse functions on Go source code which contains deeply
nested types or declarations can cause a panic due to stack exhaustion.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2022-1962 and Go issue https://go.dev/issue/53616.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.18.3 (released 2022-06-01) includes security fixes to the crypto/rand,
crypto/tls, os/exec, and path/filepath packages, as well as bug fixes to the
compiler, and the crypto/tls and text/template/parse packages. See the Go
1.18.3 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.18.3+label%3ACherryPickApproved
Hello gophers,
We have just released Go versions 1.18.3 and 1.17.11, minor point releases.
These minor releases include 4 security fixes following the security policy:
- crypto/rand: rand.Read hangs with extremely large buffers
On Windows, rand.Read will hang indefinitely if passed a buffer larger than
1 << 32 - 1 bytes.
Thanks to Davis Goodin and Quim Muntal, working at Microsoft on the Go toolset,
for reporting this issue.
This is [CVE-2022-30634][CVE-2022-30634] and Go issue https://go.dev/issue/52561.
- crypto/tls: session tickets lack random ticket_age_add
Session tickets generated by crypto/tls did not contain a randomly generated
ticket_age_add. This allows an attacker that can observe TLS handshakes to
correlate successive connections by comparing ticket ages during session
resumption.
Thanks to GitHub user nervuri for reporting this.
This is [CVE-2022-30629][CVE-2022-30629] and Go issue https://go.dev/issue/52814.
- `os/exec`: empty `Cmd.Path` can result in running unintended binary on Windows
If, on Windows, `Cmd.Run`, `cmd.Start`, `cmd.Output`, or `cmd.CombinedOutput`
are executed when Cmd.Path is unset and, in the working directory, there are
binaries named either "..com" or "..exe", they will be executed.
Thanks to Chris Darroch, brian m. carlson, and Mikhail Shcherbakov for reporting
this.
This is [CVE-2022-30580][CVE-2022-30580] and Go issue https://go.dev/issue/52574.
- `path/filepath`: Clean(`.\c:`) returns `c:` on Windows
On Windows, the `filepath.Clean` function could convert an invalid path to a
valid, absolute path. For example, Clean(`.\c:`) returned `c:`.
Thanks to Unrud for reporting this issue.
This is [CVE-2022-29804][CVE-2022-29804] and Go issue https://go.dev/issue/52476.
[CVE-2022-30634]: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30634
[CVE-2022-30629]: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30629
[CVE-2022-30580]: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30580
[CVE-2022-29804]: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-29804
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This makes some minor improvments to the dev container:
- add `nano` as an alternative to `vi` to help beginning contributors, or people
that don't remember how to quit `vi` ;-)
- add `jq` as it's often handy to have available to debug JSON output.
- set a custom prompt to make it clearer that the user is in a container
- add a short MOTD that shows that the user is in a container, and a pointer
to 'make help' (we can add more help/instructions to this MOTD in future).
Before this patch:
make -f docker.Makefile dev
...
bash-5.1#
With this patch:
make -f docker.Makefile dev
...
You are now in a development container. Run 'make help' to learn about
available make targets.
root@docker-cli-dev$
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
release notes: https://github.com/docker/buildx/releases/tag/v0.8.2
Notable changes:
- Update Compose spec used by buildx bake to v1.2.1 to fix parsing ports definition
- Fix possible crash on handling progress streams from BuildKit v0.10
- Fix parsing groups in buildx bake when already loaded by a parent group
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This only affects the version used in the dev container, but
I noticed it was an older version of buildx.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Removes the platform based switch between different versions.
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Now that HEREDOC is included in the stable Dockerfile syntax, we can
use the latest stable syntax for all Dockerfiles.
The recommendation for the stable syntax is to use `:1` (which is
equivalent to "latest" stable syntax.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.16.10 (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
misc/wasm directory, and to the net/http package. See the Go 1.16.10 milestone
for details: https://github.com/golang/go/issues?q=milestone%3AGo1.16.10+label%3ACherryPickApproved
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>
go1.16.9 (released 2021-10-07) includes a security fix to the linker and misc/wasm
directory, as well as bug fixes to the runtime and to the text/template package.
See the Go 1.16.9 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.16.9+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This includes additional fixes for CVE-2021-39293.
go1.16.8 (released 2021-09-09) includes a security fix to the archive/zip package,
as well as bug fixes to the archive/zip, go/internal/gccgoimporter, html/template,
net/http, and runtime/pprof packages. See the Go 1.16.8 milestone on the issue
tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.16.8+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This allows us to drop the `//go:generate` and use of the github.com/mjibson/esc
utility.
worth noting that Go's native "embed" does not compress files. We could compress
these files as part of a build / validate step (which would add some complexity
when updating these files) if this is a concern, but not sure if the additional
complexity is warranted.
Comparing before/after sizes (see below);
macOS: 54125840 - 54005264 = 120576 (+120.58 kB)
Linux: 52393231 - 52277701 = 115530 (+115.53 kB)
Before:
ls -l build/
total 208736
lrwxr-xr-x 1 sebastiaan staff 19 Aug 15 09:36 docker@ -> docker-linux-amd64
-rwxr-xr-x 1 sebastiaan staff 54005264 Aug 15 09:35 docker-darwin-amd64*
-rwxr-xr-x 1 sebastiaan staff 52277701 Aug 15 09:36 docker-linux-amd64*
After:
ls -l build/
total 208960
lrwxr-xr-x 1 sebastiaan staff 18 Aug 15 09:32 docker@ -> docker-linux-amd64
-rwxr-xr-x 1 sebastiaan staff 54125840 Aug 15 09:31 docker-darwin-amd64*
-rwxr-xr-x 1 sebastiaan staff 52393231 Aug 15 09:32 docker-linux-amd64*
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>
Keeping the dockerfiles/Dockerfile.cross image at 1.13, as we don't
have more current versions of that image. However, I don't think it's
still used, so we should remove it.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The experimental image is deprecated (now "labs"), and the features we use
are now included in the regular (stable) syntax.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Bash is installed already, so we might as well use it as a default.
This also removes the DOCKER_CLI_SHELL variable, which was added
in b039db985a to allow using bash
instead of (a)sh. Now that Bash is the default, there should be
no need to override, and we can keep things simple.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Building form source is slower, but will support other architectures, such as arm64
Before:
=> [gotestsum 1/2] ADD https://github.com/gotestyourself/gotestsum/releases/download/v0.4.0/gotestsum_0.4.0_linux_amd64.tar.gz gotestsum.tar.gz 2.3s
=> [gotestsum 2/2] RUN tar -xf gotestsum.tar.gz gotestsum -C /go/bin 1.8s
After:
=> [gotestsum 1/1] RUN go get gotest.tools/gotestsum@v0.4.0 13.0s
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Running `make dynbinary` inside the dev-container failed because
gcc was not installed. Adding the `build-base` metapackage, which
has gcc, make, g++ and other packages that are needed.
Before this change:
$ make -f docker.Makefile shell
$$ make dynbinary
./scripts/build/dynbinary
Building dynamically linked build/docker-linux-amd64
# github.com/docker/cli/cmd/docker
/usr/local/go/pkg/tool/linux_amd64/link: running gcc failed: exec: "gcc": executable file not found in $PATH
make: *** [Makefile:63: dynbinary] Error 2
With this patch applied
$ make -f docker.Makefile shell
$$ make dynbinary
./scripts/build/dynbinary
Building dynamically linked build/docker-linux-amd64
$$ echo $?
0
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Sebastiaan van Stijn
Sebastiaan van Stijn
Tonis Tiigi
CrazyMax
Silvin Lubecki