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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:

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

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- How I did it

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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: golang/go@go1.20.6...go1.20.7

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>
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Codecov Report

Merging #4474 (6517db9) into master (bb0e232) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files
@@           Coverage Diff           @@
##           master    #4474   +/-   ##
=======================================
  Coverage   59.39%   59.39%           
=======================================
  Files         288      288           
  Lines       24782    24782           
=======================================
  Hits        14720    14720           
  Misses       9175     9175           
  Partials      887      887           

@thaJeztah thaJeztah merged commit 06de1f8 into docker:master Aug 2, 2023
@thaJeztah thaJeztah deleted the update_go1.20.7 branch August 2, 2023 09:50
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3 participants