All Vulnerability Reports

CVE-2020-5420: Gorouter is vulnerable to DoS attack via invalid HTTP responses


Severity

High

Vendor

VMware Tanzu

Description

VMware Tanzu Application Service for VMs and Isolation Segment, all versions prior to 2.7.23, 2.8.x versions prior to 2.8.17, 2.9.x versions prior to 2.9.11, and 2.10.x versions prior to 2.10.3, consume versions of Cloud Foundry Routing (Gorouter) that allow a malicious developer with "cf push" access to cause denial-of-service to the TAS cluster by pushing an app that returns specially crafted HTTP responses that crash the Gorouters.

Affected VMware Products and Versions

Severity is high unless otherwise noted.

  • Isolation Segment
    • 2.7.x versions prior to 2.7.23
    • 2.8.x versions prior to 2.8.17
    • 2.9.x versions prior to 2.9.11
    • 2.10.x versions prior to 2.10.3
  • VMware Tanzu Application Service for VMs
    • 2.7.x versions prior to 2.7.23
    • 2.8.x versions prior to 2.8.17
    • 2.9.x versions prior to 2.9.11
    • 2.10.x versions prior to 2.10.3
Mitigation

Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:

  • Isolation Segment
    • 2.7.23
    • 2.8.17
    • 2.9.11
    • 2.10.3
  • VMware Tanzu Application Service for VMs
    • 2.7.23
    • 2.8.17
    • 2.9.11
    • 2.10.3
References
History

2020-09-10: Initial vulnerability report published.