Potential DOS attack in Puma
CVE-2019-16770

5.3MEDIUM

Key Information:

Vendor

Puma

Status
Puma
Vendor
CVE Published:
5 December 2019

What is CVE-2019-16770?

In Puma before versions 3.12.2 and 4.3.1, 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. This vulnerability is patched in Puma 4.3.1 and 3.12.2.

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Affected Version(s)

puma < 4.3.1 < 4.3.1

References

https://github.com/puma/puma/security/advisories/GHSA-7xx...
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https://lists.debian.org/debian-lts-announce/2022/05/msg0...
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CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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