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Advisory severityHigh7.5Red Hat Linux

High [CVE-2023-54365] Denial of Service via HTTP/2 Rapid Reset technique

This high-severity Red Hat Linux advisory covers CVE-2023-54365.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2023-54365 Source published Source updated

VulniPulse record published Record updated

CVE-2023-54365
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

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Summary

Traefik before 2.10.5 and 3.0.0-beta4 is affected by a denial-of-service vulnerability in HTTP/2 request handling inherited from the Go standard library's HTTP/2 implementation (CVE-2023-44487 / CVE-2023-39325, the 'Rapid Reset' technique).

A remote attacker can rapidly create and cancel HTTP/2 streams to exhaust server resources and cause service unavailability. This can exhaust server resources, leading to a denial of service (DoS) and making the service unavailable to legitimate users.

The vulnerability is not caused by Traefik-specific code. Traefik was affected because it depended on a vulnerable version of Go's HTTP/2 implementation from the golang.org/x/net module.

The remediation was to update dependencies to a version containing the upstream fix. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Weakness: CWE-770. Red Hat lists Red Hat OpenShift AI (RHOAI); Red Hat OpenShift Dev Spaces as not affected.

Affected versions
  • < 2.10.5
  • < 3.0.0-beta4
  • 3.0.0

Official advisory · high-confidence parse· fetched 21 days ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 21 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • The recommended mitigation is to upgrade Traefik to a version that includes the patched HTTP/2 dependency.

Official advisory · high-confidence parse· fetched 21 days ago·verify at source

Discussion(0)

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