update to go1.21.1

[thaJeztah]

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: golang/go@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 "" 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.

What I did

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[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.03% ⚠️

Comparison is base (9d7e0ad) 57.94% compared to head (6d5eb6f) 57.92%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11000      +/-   ##
==========================================
- Coverage   57.94%   57.92%   -0.03%     
==========================================
  Files         129      129              
  Lines       11160    11160              
==========================================
- Hits         6467     6464       -3     
- Misses       4056     4059       +3     
  Partials      637      637              

see 4 files with indirect coverage changes

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[glours]

LGTM