nulib / avalon

Variations-on-Video Hydra app
Apache License 2.0
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[Security] Bump puma from 3.12.4 to 3.12.6 #472

Closed dependabot-preview[bot] closed 4 years ago

dependabot-preview[bot] commented 4 years ago

Bumps puma from 3.12.4 to 3.12.6. This update includes security fixes.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

HTTP Smuggling via Transfer-Encoding Header in Puma

Impact

By using an invalid transfer-encoding header, an attacker could smuggle an HTTP response.

Originally reported by @ZeddYu, who has our thanks for the detailed report.

Patches

The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

For more information

If you have any questions or comments about this advisory:

Affected versions: < 3.12.5

Sourced from The GitHub Security Advisory Database.

HTTP Smuggling via Transfer-Encoding Header in Puma

Impact

This is a similar but different vulnerability to the one patched in 3.12.5 and 4.3.4.

A client could smuggle a request through a proxy, causing the proxy to send a response back to another unknown client.

If the proxy uses persistent connections and the client adds another request in via HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two requests, and when processing the second request, send back a response that the proxy does not expect. If the proxy has reused the persistent connection to Puma to send another request for a different client, the second response from the first client will be sent to the second client.

Patches

The problem has been fixed in Puma 3.12.6 and Puma 4.3.5.

For more information

If you have any questions or comments about this advisory:

Affected versions: < 3.12.6

Changelog

Sourced from puma's changelog.

4.3.4/4.3.5 and 3.12.5/3.12.6 / 2020-05-22

Each patchlevel release contains a separate security fix. We recommend simply upgrading to 4.3.5/3.12.6.

  • Security
    • Fix: Fixed two separate HTTP smuggling vulnerabilities that used the Transfer-Encoding header. CVE-2020-11076 and CVE-2020-11077.
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