Skip to content
This repository has been archived by the owner on Nov 6, 2021. It is now read-only.

[Security] Bump puma from 4.3.7 to 4.3.8 #573

Open
wants to merge 1 commit into
base: main
Choose a base branch
from

Conversation

dependabot-preview[bot]
Copy link
Contributor

Bumps puma from 4.3.7 to 4.3.8. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Keepalive Connections Causing Denial Of Service in puma This vulnerability is related to CVE-2019-16770.

Impact

The fix for CVE-2019-16770 was incomplete. The original fix only protected existing connections that had already been accepted from having their requests starved by greedy persistent-connections saturating all threads in the same process. However, new connections may still be starved by greedy persistent-connections saturating all threads in all processes in the cluster.

A puma server which received more concurrent keep-alive connections than the server had threads in its threadpool would service only a subset of connections, denying service to the unserved connections.

Patches

This problem has been fixed in puma 4.3.8 and 5.3.1.

Workarounds

Setting queue_requests false also fixes the issue. This is not advised when using puma without a reverse proxy, such as nginx or apache, because you will open yourself to slow client attacks (e.g. slowloris).

The fix is very small. A git patch is available here for those using unsupported versions of Puma.

For more information

... (truncated)

Affected versions: <= 4.3.7

Release notes

Sourced from puma's releases.

v4.3.8

  • Security
    • Close keepalive connections after the maximum number of fast inlined requests (#2625)
Changelog

Sourced from puma's changelog.

4.3.8 / 2021-05-11

  • Security
    • Close keepalive connections after the maximum number of fast inlined requests (#2625)
Commits

Dependabot compatibility score

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.


Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

  • @dependabot rebase will rebase this PR
  • @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
  • @dependabot merge will merge this PR after your CI passes on it
  • @dependabot squash and merge will squash and merge this PR after your CI passes on it
  • @dependabot cancel merge will cancel a previously requested merge and block automerging
  • @dependabot reopen will reopen this PR if it is closed
  • @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
  • @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
  • @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
  • @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
  • @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
  • @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
  • @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
  • @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language
  • @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

  • Update frequency (including time of day and day of week)
  • Pull request limits (per update run and/or open at any time)
  • Automerge options (never/patch/minor, and dev/runtime dependencies)
  • Out-of-range updates (receive only lockfile updates, if desired)
  • Security updates (receive only security updates, if desired)

Bumps [puma](https://github.com/puma/puma) from 4.3.7 to 4.3.8. **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@v4.3.7...v4.3.8)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
@dependabot-preview dependabot-preview bot added dependencies Pull requests that update a dependency file security Pull requests that address a security vulnerability labels May 18, 2021
Sign up for free to subscribe to this conversation on GitHub. Already have an account? Sign in.
Labels
dependencies Pull requests that update a dependency file security Pull requests that address a security vulnerability
Projects
None yet
Development

Successfully merging this pull request may close these issues.

0 participants