GHSA-7xx3-m584-x994
Suggest an improvement- Source
- https://github.com/advisories/GHSA-7xx3-m584-x994
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/12/GHSA-7xx3-m584-x994/GHSA-7xx3-m584-x994.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-7xx3-m584-x994
- Aliases
- Published
- 2019-12-05T19:26:37Z
- Modified
- 2023-11-01T05:30:36.650773Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack
- Details
-
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:
- Open an issue at puma.
- References
-
- https://github.com/puma/puma/security/advisories/GHSA-7xx3-m584-x994
- https://nvd.nist.gov/vuln/detail/CVE-2019-16770
- https://github.com/advisories/GHSA-7xx3-m584-x994
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2019-16770.yml
- https://lists.debian.org/debian-lts-announce/2022/05/msg00034.html
Affected packages
RubyGems / puma
Package
- Name
- puma
- Purl
- pkg:gem/puma
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.12.2
Affected versions
0.*
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
0.9.3
0.9.4
0.9.5
1.*
1.0.0
1.1.0
1.1.1
1.2.0
1.2.1
1.2.2
1.3.0
1.3.1
1.4.0
1.5.0
1.6.0
1.6.1
1.6.2
1.6.3
2.*
2.0.0.b1
2.0.0.b2
2.0.0.b3
2.0.0.b4
2.0.0.b5
2.0.0.b6
2.0.0.b7
2.0.0
2.0.1
2.1.0
2.1.1
2.2.0
2.2.1
2.2.2
2.3.0
2.3.1
2.3.2
2.4.0
2.4.1
2.5.0
2.5.1
2.6.0
2.7.0
2.7.1
2.8.0
2.8.1
2.8.2
2.9.0
2.9.1
2.9.2
2.10.0
2.10.1
2.10.2
2.11.0
2.11.1
2.11.2
2.11.3
2.12.0
2.12.1
2.12.2
2.12.3
2.13.0
2.13.1
2.13.2
2.13.3
2.13.4
2.14.0
2.15.0
2.15.1
2.15.2
2.15.3
2.16.0
3.*
3.0.0.rc1
3.0.0
3.0.1
3.0.2
3.1.0
3.1.1
3.2.0
3.3.0
3.4.0
3.5.0
3.5.1
3.5.2
3.6.0
3.6.1
3.6.2
3.7.0
3.7.1
3.8.0
3.8.1
3.8.2
3.9.0
3.9.1
3.10.0
3.11.0
3.11.1
3.11.2
3.11.3
3.11.4
3.12.0
3.12.1
RubyGems / puma
Package
- Name
- puma
- Purl
- pkg:gem/puma