go1.21.3 (released 2023-10-10) includes a security fix to the net/http package.
See the Go 1.21.3 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.21.3+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.21.2...go1.21.3
From the security mailing:
[security] Go 1.21.3 and Go 1.20.10 are released
Hello gophers,
We have just released Go versions 1.21.3 and 1.20.10, minor point releases.
These minor releases include 1 security fixes following the security policy:
- net/http: rapid stream resets can cause excessive work
A malicious HTTP/2 client which rapidly creates requests and
immediately resets them can cause excessive server resource consumption.
While the total number of requests is bounded to the
http2.Server.MaxConcurrentStreams setting, resetting an in-progress
request allows the attacker to create a new request while the existing
one is still executing.
HTTP/2 servers now bound the number of simultaneously executing
handler goroutines to the stream concurrency limit. New requests
arriving when at the limit (which can only happen after the client
has reset an existing, in-flight request) will be queued until a
handler exits. If the request queue grows too large, the server
will terminate the connection.
This issue is also fixed in golang.org/x/net/http2 v0.17.0,
for users manually configuring HTTP/2.
The default stream concurrency limit is 250 streams (requests)
per HTTP/2 connection. This value may be adjusted using the
golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams
setting and the ConfigureServer function.
This is CVE-2023-39325 and Go issue https://go.dev/issue/63417.
This is also tracked by CVE-2023-44487.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.21.2 (released 2023-10-05) includes one security fixes to the cmd/go package,
as well as bug fixes to the compiler, the go command, the linker, the runtime,
and the runtime/metrics package. See the Go 1.21.2 milestone on our issue
tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.21.2+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.21.1...go1.21.2
From the security mailing:
[security] Go 1.21.2 and Go 1.20.9 are released
Hello gophers,
We have just released Go versions 1.21.2 and 1.20.9, minor point releases.
These minor releases include 1 security fixes following the security policy:
- cmd/go: line directives allows arbitrary execution during build
"//line" directives can be used to bypass the restrictions on "//go:cgo_"
directives, allowing blocked linker and compiler flags to be passed during
compliation. This can result in unexpected execution of arbitrary code when
running "go build". The line directive requires the absolute path of the file in
which the directive lives, which makes exploting this issue significantly more
complex.
This is CVE-2023-39323 and Go issue https://go.dev/issue/63211.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.21.1 (released 2023-09-06) includes four security fixes to the cmd/go,
crypto/tls, and html/template packages, as well as bug fixes to the compiler,
the go command, the linker, the runtime, and the context, crypto/tls,
encoding/gob, encoding/xml, go/types, net/http, os, and path/filepath packages.
See the Go 1.21.1 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.21.1+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.21.0...go1.21.1
From the security mailing:
[security] Go 1.21.1 and Go 1.20.8 are released
Hello gophers,
We have just released Go versions 1.21.1 and 1.20.8, minor point releases.
These minor releases include 4 security fixes following the security policy:
- cmd/go: go.mod toolchain directive allows arbitrary execution
The go.mod toolchain directive, introduced in Go 1.21, could be leveraged to
execute scripts and binaries relative to the root of the module when the "go"
command was executed within the module. This applies to modules downloaded using
the "go" command from the module proxy, as well as modules downloaded directly
using VCS software.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2023-39320 and Go issue https://go.dev/issue/62198.
- html/template: improper handling of HTML-like comments within script contexts
The html/template package did not properly handle HMTL-like "<!--" and "-->"
comment tokens, nor hashbang "#!" comment tokens, in <script> contexts. This may
cause the template parser to improperly interpret the contents of <script>
contexts, causing actions to be improperly escaped. This could be leveraged to
perform an XSS attack.
Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for reporting this
issue.
This is CVE-2023-39318 and Go issue https://go.dev/issue/62196.
- html/template: improper handling of special tags within script contexts
The html/template package did not apply the proper rules for handling occurrences
of "<script", "<!--", and "</script" within JS literals in <script> contexts.
This may cause the template parser to improperly consider script contexts to be
terminated early, causing actions to be improperly escaped. This could be
leveraged to perform an XSS attack.
Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for reporting this
issue.
This is CVE-2023-39319 and Go issue https://go.dev/issue/62197.
- crypto/tls: panic when processing post-handshake message on QUIC connections
Processing an incomplete post-handshake message for a QUIC connection caused a panic.
Thanks to Marten Seemann for reporting this issue.
This is CVE-2023-39321 and CVE-2023-39322 and Go issue https://go.dev/issue/62266.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Tests in pkg/cri/[sb]server/container_create_linux_test.go depends on go:noinline
since Go 1.21.
e.g.,
> ```
> === FAIL: pkg/cri/sbserver TestGenerateSeccompSecurityProfileSpecOpts/should_set_default_seccomp_when_seccomp_is_runtime/default (0.00s)
> container_create_linux_test.go:1013:
> Error Trace: /home/runner/work/containerd/containerd/pkg/cri/sbserver/container_create_linux_test.go:1013
> Error: Not equal:
> expected: 0x263d880
> actual : 0x263cbc0
> Test: TestGenerateSeccompSecurityProfileSpecOpts/should_set_default_seccomp_when_seccomp_is_runtime/default
> ```
See comments in PR 8957.
Thanks to Wei Fu for analyzing this.
Co-authored-by: Wei Fu <fuweid89@gmail.com>
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Includes a fix for CVE-2023-29409
go1.20.7 (released 2023-08-01) includes a security fix to the crypto/tls
package, as well as bug fixes to the assembler and the compiler. See the
Go 1.20.7 milestone on our issue tracker for details:
- https://github.com/golang/go/issues?q=milestone%3AGo1.20.7+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.20.6...go1.20.7
go1.19.12 (released 2023-08-01) includes a security fix to the crypto/tls
package, as well as bug fixes to the assembler and the compiler. See the
Go 1.19.12 milestone on our issue tracker for details.
- https://github.com/golang/go/issues?q=milestone%3AGo1.19.12+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.19.11...go1.19.12
From the mailing list announcement:
[security] Go 1.20.7 and Go 1.19.12 are released
Hello gophers,
We have just released Go versions 1.20.7 and 1.19.12, minor point releases.
These minor releases include 1 security fixes following the security policy:
- crypto/tls: restrict RSA keys in certificates to <= 8192 bits
Extremely large RSA keys in certificate chains can cause a client/server
to expend significant CPU time verifying signatures. Limit this by
restricting the size of RSA keys transmitted during handshakes to <=
8192 bits.
Based on a survey of publicly trusted RSA keys, there are currently only
three certificates in circulation with keys larger than this, and all
three appear to be test certificates that are not actively deployed. It
is possible there are larger keys in use in private PKIs, but we target
the web PKI, so causing breakage here in the interests of increasing the
default safety of users of crypto/tls seems reasonable.
Thanks to Mateusz Poliwczak for reporting this issue.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.20.7
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.20.6 (released 2023-07-11) includes a security fix to the net/http
package, as well as bug fixes to the compiler, cgo, the cover tool, the
go command, the runtime, and the crypto/ecdsa, go/build, go/printer,
net/mail, and text/template packages. See the Go 1.20.6 milestone on
our issue tracker for details.
https://github.com/golang/go/issues?q=milestone%3AGo1.20.6+label%3ACherryPickApproved
Full diff: https://github.com/golang/go/compare/go1.20.5...go1.20.6
These minor releases include 1 security fixes following the security policy:
- net/http: insufficient sanitization of Host header
The HTTP/1 client did not fully validate the contents of the Host header.
A maliciously crafted Host header could inject additional headers or
entire requests. The HTTP/1 client now refuses to send requests containing
an invalid Request.Host or Request.URL.Host value.
Thanks to Bartek Nowotarski for reporting this issue.
Includes security fixes for CVE-2023-29406 and Go issue https://go.dev/issue/60374
Signed-off-by: Danny Canter <danny@dcantah.dev>
go1.20.5 (released 2023-06-06) includes four security fixes to the cmd/go and
runtime packages, as well as bug fixes to the compiler, the go command, the
runtime, and the crypto/rsa, net, and os packages. See the Go 1.20.5 milestone
on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.20.5+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.20.4...go1.20.5
These minor releases include 3 security fixes following the security policy:
- cmd/go: cgo code injection
The go command may generate unexpected code at build time when using cgo. This
may result in unexpected behavior when running a go program which uses cgo.
This may occur when running an untrusted module which contains directories with
newline characters in their names. Modules which are retrieved using the go command,
i.e. via "go get", are not affected (modules retrieved using GOPATH-mode, i.e.
GO111MODULE=off, may be affected).
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2023-29402 and Go issue https://go.dev/issue/60167.
- runtime: unexpected behavior of setuid/setgid binaries
The Go runtime didn't act any differently when a binary had the setuid/setgid
bit set. On Unix platforms, if a setuid/setgid binary was executed with standard
I/O file descriptors closed, opening any files could result in unexpected
content being read/written with elevated prilieges. Similarly if a setuid/setgid
program was terminated, either via panic or signal, it could leak the contents
of its registers.
Thanks to Vincent Dehors from Synacktiv for reporting this issue.
This is CVE-2023-29403 and Go issue https://go.dev/issue/60272.
- cmd/go: improper sanitization of LDFLAGS
The go command may execute arbitrary code at build time when using cgo. This may
occur when running "go get" on a malicious module, or when running any other
command which builds untrusted code. This is can by triggered by linker flags,
specified via a "#cgo LDFLAGS" directive.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2023-29404 and CVE-2023-29405 and Go issues https://go.dev/issue/60305 and https://go.dev/issue/60306.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Helpers to convert from snapshot types to their protobuf structures and
vice-versa appear three times. It seems sane to just expose this facility
in the snapshots pkg. From/ToKind weren't used anywhere but doesn't hurt to
round out the types by exposing them.
Signed-off-by: Danny Canter <danny@dcantah.dev>
Helpers to convert from the OCI image specs [Descriptor] to its protobuf
structure for Descriptor and vice-versa appear three times. It seems sane
to just expose this facility in /oci.
Signed-off-by: Danny Canter <danny@dcantah.dev>
Helpers to convert from containerd's [Mount] to its protobuf structure for
[Mount] and vice-versa appear three times. It seems sane to just expose
this facility in /mount.
Signed-off-by: Danny Canter <danny@dcantah.dev>
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>
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
go1.19.8 (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 linker, the runtime, and the time package. See the Go 1.19.8
milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.19.8+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.19.7...go1.19.8
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>
> 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
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This code was no longer used now that the version-dependent rules were
removed from the template in 30c893ec5cba64de1bca0a2a9d3f92423f3ec0d7.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These conditions were added in docker in 8cf89245f5
to account for old versions of debian/ubuntu (apparmor_parser < 2.8.95)
that lacked some options;
> This allows us to use the apparmor profile we have in contrib/apparmor/
> and solves the problems where certain functions are not apparent on older
> versions of apparmor_parser on debian/ubuntu.
Those patches were from 2015/2016, and all currently supported distro
versions should now have more current versions than that. Looking at the
oldest supported versions;
Ubuntu 18.04 "Bionic":
apparmor_parser --version
AppArmor parser version 2.12
Copyright (C) 1999-2008 Novell Inc.
Copyright 2009-2012 Canonical Ltd.
Debian 10 "Buster"
apparmor_parser --version
AppArmor parser version 2.13.2
Copyright (C) 1999-2008 Novell Inc.
Copyright 2009-2018 Canonical Ltd.
This patch removes the version-dependent rules.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- Add Target to mount.Mount.
- Add UnmountMounts to unmount a list of mounts in reverse order.
- Add UnmountRecursive to unmount deepest mount first for a given target, using
moby/sys/mountinfo.
Signed-off-by: Edgar Lee <edgarhinshunlee@gmail.com>
For ease of running the entire tests locally
```
cd contrib
docker build -t containerd-test -f Dockerfile.test --target integration ..
docker run --privileged containerd-test
docker build -t containerd-test -f Dockerfile.test --target cri-integration ..
docker run --privileged --sysctl net.ipv6.conf.all.disable_ipv6=0 containerd-test
docker build -t containerd-test -f Dockerfile.test --target critest ..
docker run --privileged --sysctl net.ipv6.conf.all.disable_ipv6=0 containerd-test
```
Tested on Ubuntu 22.10 (amd64, cgroup v2).
Known issues:
- cri-integration and critest: require `--sysctl net.ipv6.conf.all.disable_ipv6=0` to avoid
errors like `failed to set bridge addr: could not add IP address to "cni0": permission denied`
- critest: Often fails due to Docker Hub rate limits. Fix is coming in kubernetes-sigs/cri-tools PR 1053
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
- add support to fetch and download containerd tarball from GCS buckets
that require authentication.
GCS_BUCKET_TOKEN should have read access to the bucket from which
artifacts are to be fetched. The token is expected to be present in
the instance metadata of the VM, similar to other node environment
variables
Signed-off-by: Akhil Mohan <makhil@vmware.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>
