go1.20.4 (released 2023-05-02) includes three security fixes to the html/template
package, as well as bug fixes to the compiler, the runtime, and the crypto/subtle,
crypto/tls, net/http, and syscall packages. See the Go 1.20.4 milestone on our
issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.20.4+label%3ACherryPickApproved
release notes: https://go.dev/doc/devel/release#go1.20.4
full diff: https://github.com/golang/go/compare/go1.20.3...go1.20.4
from the announcement:
> These minor releases include 3 security fixes following the security policy:
>
> - html/template: improper sanitization of CSS values
>
> Angle brackets (`<>`) were not considered dangerous characters when inserted
> into CSS contexts. Templates containing multiple actions separated by a '/'
> character could result in unexpectedly closing the CSS context and allowing
> for injection of unexpected HMTL, if executed with untrusted input.
>
> Thanks to Juho Nurminen of Mattermost for reporting this issue.
>
> This is CVE-2023-24539 and Go issue https://go.dev/issue/59720.
>
> - html/template: improper handling of JavaScript whitespace
>
> Not all valid JavaScript whitespace characters were considered to be
> whitespace. Templates containing whitespace characters outside of the character
> set "\t\n\f\r\u0020\u2028\u2029" in JavaScript contexts that also contain
> actions may not be properly sanitized during execution.
>
> Thanks to Juho Nurminen of Mattermost for reporting this issue.
>
> This is CVE-2023-24540 and Go issue https://go.dev/issue/59721.
>
> - html/template: improper handling of empty HTML attributes
>
> Templates containing actions in unquoted HTML attributes (e.g. "attr={{.}}")
> executed with empty input could result in output that would have unexpected
> results when parsed due to HTML normalization rules. This may allow injection
> of arbitrary attributes into tags.
>
> Thanks to Juho Nurminen of Mattermost for reporting this issue.
>
> This is CVE-2023-29400 and Go issue https://go.dev/issue/59722.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
release notes: https://github.com/opencontainers/runc/releases/tag/v1.1.7
full diff: https://github.com/opencontainers/runc/compare/v1.1.6...v1.1.7
This is the seventh patch release in the 1.1.z release of runc, and is
the last planned release of the 1.1.z series. It contains a fix for
cgroup device rules with systemd when handling device rules for devices
that don't exist (though for devices whose drivers don't correctly
register themselves in the kernel -- such as the NVIDIA devices -- the
full fix only works with systemd v240+).
- When used with systemd v240+, systemd cgroup drivers no longer skip
DeviceAllow rules if the device does not exist (a regression introduced
in runc 1.1.3). This fix also reverts the workaround added in runc 1.1.5,
removing an extra warning emitted by runc run/start.
- The source code now has a new file, runc.keyring, which contains the keys
used to sign runc releases.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This is a workaround to have buildinfo with deps embedded in the
binary. We need to create a go.mod file before building with
-modfile=vendor.mod, otherwise it fails with:
"-modfile cannot be used to set the module root directory."
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
release notes: https://github.com/opencontainers/runc/releases/tag/v1.1.6
full diff: https://github.com/opencontainers/runc/compare/v1.1.5...v1.1.6
This is the sixth patch release in the 1.1.z series of runc, which fixes
a series of cgroup-related issues.
Note that this release can no longer be built from sources using Go
1.16. Using a latest maintained Go 1.20.x or Go 1.19.x release is
recommended. Go 1.17 can still be used.
- systemd cgroup v1 and v2 drivers were deliberately ignoring UnitExist error
from systemd while trying to create a systemd unit, which in some scenarios
may result in a container not being added to the proper systemd unit and
cgroup.
- systemd cgroup v2 driver was incorrectly translating cpuset range from spec's
resources.cpu.cpus to systemd unit property (AllowedCPUs) in case of more
than 8 CPUs, resulting in the wrong AllowedCPUs setting.
- systemd cgroup v1 driver was prefixing container's cgroup path with the path
of PID 1 cgroup, resulting in inability to place PID 1 in a non-root cgroup.
- runc run/start may return "permission denied" error when starting a rootless
container when the file to be executed does not have executable bit set for
the user, not taking the CAP_DAC_OVERRIDE capability into account. This is
a regression in runc 1.1.4, as well as in Go 1.20 and 1.20.1
- cgroup v1 drivers are now aware of misc controller.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.20.3 (released 2023-04-04) includes security fixes to the go/parser,
html/template, mime/multipart, net/http, and net/textproto packages, as well
as bug fixes to the compiler, the linker, the runtime, and the time package.
See the Go 1.20.3 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.20.3+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.20.2...go1.20.3
Further details from the announcement on the mailing list:
We have just released Go versions 1.20.3 and 1.19.8, minor point releases.
These minor releases include 4 security fixes following the security policy:
- go/parser: infinite loop in parsing
Calling any of the Parse functions on Go source code which contains `//line`
directives with very large line numbers can cause an infinite loop due to
integer overflow.
Thanks to Philippe Antoine (Catena cyber) for reporting this issue.
This is CVE-2023-24537 and Go issue https://go.dev/issue/59180.
- html/template: backticks not treated as string delimiters
Templates did not properly consider backticks (`) as Javascript string
delimiters, and as such did not escape them as expected. Backticks are
used, since ES6, for JS template literals. If a template contained a Go
template action within a Javascript template literal, the contents of the
action could be used to terminate the literal, injecting arbitrary Javascript
code into the Go template.
As ES6 template literals are rather complex, and themselves can do string
interpolation, we've decided to simply disallow Go template actions from being
used inside of them (e.g. "var a = {{.}}"), since there is no obviously safe
way to allow this behavior. This takes the same approach as
github.com/google/safehtml. Template.Parse will now return an Error when it
encounters templates like this, with a currently unexported ErrorCode with a
value of 12. This ErrorCode will be exported in the next major release.
Users who rely on this behavior can re-enable it using the GODEBUG flag
jstmpllitinterp=1, with the caveat that backticks will now be escaped. This
should be used with caution.
Thanks to Sohom Datta, Manipal Institute of Technology, for reporting this issue.
This is CVE-2023-24538 and Go issue https://go.dev/issue/59234.
- net/http, net/textproto: denial of service from excessive memory allocation
HTTP and MIME header parsing could allocate large amounts of memory, even when
parsing small inputs.
Certain unusual patterns of input data could cause the common function used to
parse HTTP and MIME headers to allocate substantially more memory than
required to hold the parsed headers. An attacker can exploit this behavior to
cause an HTTP server to allocate large amounts of memory from a small request,
potentially leading to memory exhaustion and a denial of service.
Header parsing now correctly allocates only the memory required to hold parsed
headers.
Thanks to Jakob Ackermann (@das7pad) for discovering this issue.
This is CVE-2023-24534 and Go issue https://go.dev/issue/58975.
- net/http, net/textproto, mime/multipart: denial of service from excessive resource consumption
Multipart form parsing can consume large amounts of CPU and memory when
processing form inputs containing very large numbers of parts. This stems from
several causes:
mime/multipart.Reader.ReadForm limits the total memory a parsed multipart form
can consume. ReadForm could undercount the amount of memory consumed, leading
it to accept larger inputs than intended. Limiting total memory does not
account for increased pressure on the garbage collector from large numbers of
small allocations in forms with many parts. ReadForm could allocate a large
number of short-lived buffers, further increasing pressure on the garbage
collector. The combination of these factors can permit an attacker to cause an
program that parses multipart forms to consume large amounts of CPU and
memory, potentially resulting in a denial of service. This affects programs
that use mime/multipart.Reader.ReadForm, as well as form parsing in the
net/http package with the Request methods FormFile, FormValue,
ParseMultipartForm, and PostFormValue.
ReadForm now does a better job of estimating the memory consumption of parsed
forms, and performs many fewer short-lived allocations.
In addition, mime/multipart.Reader now imposes the following limits on the
size of parsed forms:
Forms parsed with ReadForm may contain no more than 1000 parts. This limit may
be adjusted with the environment variable GODEBUG=multipartmaxparts=. Form
parts parsed with NextPart and NextRawPart may contain no more than 10,000
header fields. In addition, forms parsed with ReadForm may contain no more
than 10,000 header fields across all parts. This limit may be adjusted with
the environment variable GODEBUG=multipartmaxheaders=.
Thanks to Jakob Ackermann for discovering this issue.
This is CVE-2023-24536 and Go issue https://go.dev/issue/59153.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
release notes: https://github.com/opencontainers/runc/releases/tag/v1.1.5
diff: https://github.com/opencontainers/runc/compare/v1.1.4...v1.1.5
This is the fifth patch release in the 1.1.z series of runc, which fixes
three CVEs found in runc.
* CVE-2023-25809 is a vulnerability involving rootless containers where
(under specific configurations), the container would have write access
to the /sys/fs/cgroup/user.slice/... cgroup hierarchy. No other
hierarchies on the host were affected. This vulnerability was
discovered by Akihiro Suda.
<https://github.com/opencontainers/runc/security/advisories/GHSA-m8cg-xc2p-r3fc>
* CVE-2023-27561 was a regression which effectively re-introduced
CVE-2019-19921. This bug was present from v1.0.0-rc95 to v1.1.4. This
regression was discovered by @Beuc.
<https://github.com/advisories/GHSA-vpvm-3wq2-2wvm>
* CVE-2023-28642 is a variant of CVE-2023-27561 and was fixed by the same
patch. This variant of the above vulnerability was reported by Lei
Wang.
<https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c>
In addition, the following other fixes are included in this release:
* Fix the inability to use `/dev/null` when inside a container.
* Fix changing the ownership of host's `/dev/null` caused by fd redirection
(a regression in 1.1.1).
* Fix rare runc exec/enter unshare error on older kernels, including
CentOS < 7.7.
* nsexec: Check for errors in `write_log()`.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Includes a security fix for crypto/elliptic (CVE-2023-24532).
> go1.20.2 (released 2023-03-07) includes a security fix to the crypto/elliptic package,
> as well as bug fixes to the compiler, the covdata command, the linker, the runtime, and
> the crypto/ecdh, crypto/rsa, crypto/x509, os, and syscall packages.
> See the Go 1.20.2 milestone on our issue tracker for details.
https://go.dev/doc/devel/release#go1.20.minor
From the announcement:
> We have just released Go versions 1.20.2 and 1.19.7, minor point releases.
>
> These minor releases include 1 security fixes following the security policy:
>
> - crypto/elliptic: incorrect P-256 ScalarMult and ScalarBaseMult results
>
> The ScalarMult and ScalarBaseMult methods of the P256 Curve may return an
> incorrect result if called with some specific unreduced scalars (a scalar larger
> than the order of the curve).
>
> This does not impact usages of crypto/ecdsa or crypto/ecdh.
>
> This is CVE-2023-24532 and Go issue https://go.dev/issue/58647.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.19.6 (released 2023-02-14) includes security fixes to the crypto/tls,
mime/multipart, net/http, and path/filepath packages, as well as bug fixes to
the go command, the linker, the runtime, and the crypto/x509, net/http, and
time packages. See the Go 1.19.6 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.19.6+label%3ACherryPickApproved
From the announcement on the security mailing:
We have just released Go versions 1.20.1 and 1.19.6, minor point releases.
These minor releases include 4 security fixes following the security policy:
- path/filepath: path traversal in filepath.Clean on Windows
On Windows, the filepath.Clean function could transform an invalid path such
as a/../c:/b into the valid path c:\b. This transformation of a relative (if
invalid) path into an absolute path could enable a directory traversal attack.
The filepath.Clean function will now transform this path into the relative
(but still invalid) path .\c:\b.
This is CVE-2022-41722 and Go issue https://go.dev/issue/57274.
- net/http, mime/multipart: denial of service from excessive resource
consumption
Multipart form parsing with mime/multipart.Reader.ReadForm can consume largely
unlimited amounts of memory and disk files. This also affects form parsing in
the net/http package with the Request methods FormFile, FormValue,
ParseMultipartForm, and PostFormValue.
ReadForm takes a maxMemory parameter, and is documented as storing "up to
maxMemory bytes +10MB (reserved for non-file parts) in memory". File parts
which cannot be stored in memory are stored on disk in temporary files. The
unconfigurable 10MB reserved for non-file parts is excessively large and can
potentially open a denial of service vector on its own. However, ReadForm did
not properly account for all memory consumed by a parsed form, such as map
ntry overhead, part names, and MIME headers, permitting a maliciously crafted
form to consume well over 10MB. In addition, ReadForm contained no limit on
the number of disk files created, permitting a relatively small request body
to create a large number of disk temporary files.
ReadForm now properly accounts for various forms of memory overhead, and
should now stay within its documented limit of 10MB + maxMemory bytes of
memory consumption. Users should still be aware that this limit is high and
may still be hazardous.
ReadForm now creates at most one on-disk temporary file, combining multiple
form parts into a single temporary file. The mime/multipart.File interface
type's documentation states, "If stored on disk, the File's underlying
concrete type will be an *os.File.". This is no longer the case when a form
contains more than one file part, due to this coalescing of parts into a
single file. The previous behavior of using distinct files for each form part
may be reenabled with the environment variable
GODEBUG=multipartfiles=distinct.
Users should be aware that multipart.ReadForm and the http.Request methods
that call it do not limit the amount of disk consumed by temporary files.
Callers can limit the size of form data with http.MaxBytesReader.
This is CVE-2022-41725 and Go issue https://go.dev/issue/58006.
- crypto/tls: large handshake records may cause panics
Both clients and servers may send large TLS handshake records which cause
servers and clients, respectively, to panic when attempting to construct
responses.
This affects all TLS 1.3 clients, TLS 1.2 clients which explicitly enable
session resumption (by setting Config.ClientSessionCache to a non-nil value),
and TLS 1.3 servers which request client certificates (by setting
Config.ClientAuth
> = RequestClientCert).
This is CVE-2022-41724 and Go issue https://go.dev/issue/58001.
- net/http: avoid quadratic complexity in HPACK decoding
A maliciously crafted HTTP/2 stream could cause excessive CPU consumption
in the HPACK decoder, sufficient to cause a denial of service from a small
number of small requests.
This issue is also fixed in golang.org/x/net/http2 v0.7.0, for users manually
configuring HTTP/2.
This is CVE-2022-41723 and Go issue https://go.dev/issue/57855.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
CI is failing when bind-mounting source from the host into the dev-container;
fatal: detected dubious ownership in repository at '/go/src/github.com/docker/docker'
To add an exception for this directory, call:
git config --global --add safe.directory /go/src/github.com/docker/docker
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Running `ctr` in `make shell` doesn't work by default - one has to
invoke it via `ctr --address /run/docker/containerd/containerd.sock -n
moby` or set the CONTAINERD_{ADDRESS,NAMESPACE} environment variables to
be able to just use `ctr`.
Considering ephemeral nature of these containers it's cumbersome to do
it every time manually - this commit sets the variables to the default
containerd socket address and makes it much easier to use ctr.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
We already prefer ld for cross-building arm64 but that seems
not enough as native arm64 build also has a linker issue with lld
so we need to also prefer ld for native arm64 build.
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
Static binaries for dockerd are broken on armhf and armel (32-bit).
It seems to be an issue with GCC as building using clang solves
this issue. Also adds extra instruction to prefer ld for
cross-compiling arm64 in bullseye otherwise it doesn't link.
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
Current implementation in hack/make.sh overwrites PKG_CONFIG
if not defined and set it to pkg-config. When a build is invoked
using xx in our Dockerfile, it will set PKG_CONFIG to the right
value in go environments depending on the target architecture: 8015613ccc/base/xx-go (L75-L78)
Also needs to install dpkg-dev to use pkg-config when cross-building
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
We still need a stage that build binaries and extra tools as well for
docker-ce-packaging repo: ff110508ff/static/Makefile (L41-L57)
This could be removed if we create a package for each project
like it's done in docker-packaging repo: https://github.com/docker/packaging/tree/main/pkg
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
Better support for cross compilation so we can fully rely
on `--platform` flag of buildx for a seamless integration.
This removes unnecessary extra cross logic in the Dockerfile,
DOCKER_CROSSPLATFORMS and CROSS vars and some hack scripts as well.
Non-sandboxed build invocation is still supported and dev stages
in the Dockerfile have been updated accordingly.
Bake definition and GitHub Actions workflows have been updated
accordingly as well.
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
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
The golang.org/x/net fix is in 1e63c2f08a
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Current Dockerfile downloads vpnkit for both linux/amd64
and linux/arm64 platforms even if target platform does not
match. This change will download vpnkit only if target
platform matches, otherwise it will just use a dummy scratch
stage.
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
