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[Security] Bump puma from 4.3.0 to 4.3.1 #3876

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Dec 10, 2019

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Bumps puma from 4.3.0 to 4.3.1. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Moderate severity vulnerability that affects puma

Keepalive thread overload/DoS

Impact

A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack.

If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough.

Patches

This vulnerability is patched in Puma 4.3.1 and 3.12.2.

Workarounds

Reverse proxies in front of Puma could be configured to always allow less than X keepalive connections to a Puma cluster or process, where X is the number of threads configured in Puma's thread pool.

For more information

If you have any questions or comments about this advisory:

... (truncated)

Affected versions: >= 4.0.0, < 4.3.1

Changelog

Sourced from puma's changelog.

4.3.1 and 3.12.2 / 2019-12-05

  • Security
    • Fix: a poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. CVE-2019-16770.
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Bumps [puma](https://github.com/puma/puma) from 4.3.0 to 4.3.1. **This update includes a security fix.**
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v4.3.0...v4.3.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
@dependabot-preview dependabot-preview bot added dependencies Pull requests that updates a dependency security Pull requests that address a security vulnerability labels Dec 5, 2019
@javierm javierm added this to Reviewing in Roadmap via automation Dec 5, 2019
@javierm javierm self-assigned this Dec 5, 2019
Roadmap automation moved this from Reviewing to Testing Dec 10, 2019
@javierm javierm merged commit 9a6187d into master Dec 10, 2019
@javierm javierm deleted the dependabot/bundler/puma-4.3.1 branch December 10, 2019 21:36
Roadmap automation moved this from Testing to Release 1.1.0 Dec 10, 2019
smarques pushed a commit to venetochevogliamo/consul that referenced this pull request Apr 29, 2020
…r/puma-4.3.1

[Security] Bump puma from 4.3.0 to 4.3.1
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