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🚨 [security] [ruby] Update puma 5.6.5 → 6.5.0 (major) #813

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🚨 [security] [ruby] Update puma 5.6.5 → 6.5.0 (major) #813

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@depfu depfu bot commented Nov 24, 2024

🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ puma (5.6.5 → 6.5.0) · Repo · Changelog

Security Advisories 🚨

🚨 Puma's header normalization allows for client to clobber proxy set headers

Impact

Clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-Forwarded_For). Any users trusting headers set by their proxy may be affected. Attackers may be able to downgrade connections to HTTP (non-SSL) or redirect responses, which could cause confidentiality leaks if combined with a separate MITM attack.

Patches

v6.4.3/v5.6.9 now discards any headers using underscores if the non-underscore version also exists. Effectively, allowing the proxy defined headers to always win.

Workarounds

Nginx has a underscores_in_headers configuration variable to discard these headers at the proxy level.

Any users that are implicitly trusting the proxy defined headers for security or availability should immediately cease doing so until upgraded to the fixed versions.

🚨 Puma's header normalization allows for client to clobber proxy set headers

Impact

Clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-Forwarded_For). Any users trusting headers set by their proxy may be affected. Attackers may be able to downgrade connections to HTTP (non-SSL) or redirect responses, which could cause confidentiality leaks if combined with a separate MITM attack.

Patches

v6.4.3/v5.6.9 now discards any headers using underscores if the non-underscore version also exists. Effectively, allowing the proxy defined headers to always win.

Workarounds

Nginx has a underscores_in_headers configuration variable to discard these headers at the proxy level.

Any users that are implicitly trusting the proxy defined headers for security or availability should immediately cease doing so until upgraded to the fixed versions.

🚨 Puma HTTP Request/Response Smuggling vulnerability

Impact

Prior to versions 6.4.2 and 5.6.8, puma exhibited dangerous behavior when parsing chunked transfer encoding bodies.

Fixed versions limit the size of chunk extensions. Without this limit, an attacker could cause unbounded resource (CPU, network bandwidth) consumption.

Patches

The vulnerability has been fixed in 6.4.2 and 5.6.8.

Workarounds

No known workarounds.

References

🚨 Puma HTTP Request/Response Smuggling vulnerability

Impact

Prior to versions 6.4.2 and 5.6.8, puma exhibited dangerous behavior when parsing chunked transfer encoding bodies.

Fixed versions limit the size of chunk extensions. Without this limit, an attacker could cause unbounded resource (CPU, network bandwidth) consumption.

Patches

The vulnerability has been fixed in 6.4.2 and 5.6.8.

Workarounds

No known workarounds.

References

🚨 Puma HTTP Request/Response Smuggling vulnerability

Impact

Prior to version 6.3.1, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in a way that allowed HTTP request smuggling.

The following vulnerabilities are addressed by this advisory:

  • Incorrect parsing of trailing fields in chunked transfer encoding bodies
  • Parsing of blank/zero-length Content-Length headers

Patches

The vulnerability has been fixed in 6.3.1 and 5.6.7.

Workarounds

No known workarounds.

References

HTTP Request Smuggling

For more information

If you have any questions or comments about this advisory:

Open an issue in Puma
See our security policy

🚨 Puma HTTP Request/Response Smuggling vulnerability

Impact

Prior to version 6.3.1, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in a way that allowed HTTP request smuggling.

The following vulnerabilities are addressed by this advisory:

  • Incorrect parsing of trailing fields in chunked transfer encoding bodies
  • Parsing of blank/zero-length Content-Length headers

Patches

The vulnerability has been fixed in 6.3.1 and 5.6.7.

Workarounds

No known workarounds.

References

HTTP Request Smuggling

For more information

If you have any questions or comments about this advisory:

Open an issue in Puma
See our security policy

Release Notes

Too many releases to show here. View the full release notes.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

↗️ nio4r (indirect, 2.5.8 → 2.7.4) · Repo · Changelog

Release Notes

2.7.2 (from changelog)

  • Modernize gem (list all authors, etc).
  • Drop official support for Ruby 2.4.
  • Fix JRuby release version.

2.7.1

What's Changed

Full Changelog: v2.7.0...v2.7.1

2.7.0

What's Changed

New Contributors

Full Changelog: v2.6.1...v2.7.0

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 49 commits:

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@depfu depfu bot added the depfu label Nov 24, 2024
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