CVE-2020-11077

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Summary

CVECVE-2020-11077
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-05-22 15:15:00 UTC
Updated2023-11-07 03:14:00 UTC
DescriptionIn Puma (RubyGem) before 4.3.5 and 3.12.6, 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. This is a similar but different vulnerability from CVE-2020-11076. The problem has been fixed in Puma 3.12.6 and Puma 4.3.5.

Risk And Classification

Problem Types: CWE-444

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 33 All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.2 All All All
Application Puma Puma All All All All
Application Puma Puma All All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2398-1] puma security update MLIST lists.debian.org
[security-announce] openSUSE-SU-2020:1001-1: moderate: Security update f SUSE lists.opensuse.org
HTTP Smuggling via Transfer-Encoding Header · Advisory · puma/puma · GitHub CONFIRM github.com Third Party Advisory
[SECURITY] Fedora 33 Update: rubygem-puma-4.3.6-1.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 33 Update: rubygem-puma-4.3.6-1.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[security-announce] openSUSE-SU-2020:0990-1: moderate: Security update f SUSE lists.opensuse.org
puma/History.md at master · puma/puma · GitHub MISC github.com Release Notes, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 200174 Ubuntu Security Notification for Puma Vulnerabilities (USN-6682-1)
  • 750577 OpenSUSE Security Update for rmt-server (openSUSE-SU-2020:2000-1)
  • 750580 OpenSUSE Security Update for rmt-server (openSUSE-SU-2020:1993-1)
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