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: golang/go@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>