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USN-5021-1: curl vulnerabilities




VMware Tanzu

Versions Affected

  • Canonical Ubuntu 18.04


Harry Sintonen and Tomas Hoger discovered that curl incorrectly handled TELNET connections when the -t option was used on the command line. Uninitialized data possibly containing sensitive information could be sent to the remote server, contrary to expectations. (CVE-2021-22898, CVE-2021-22925)

Harry Sintonen discovered that curl incorrectly reused connections in the connection pool. This could result in curl reusing the wrong connections. (CVE-2021-22924)

CVEs contained in this USN include: CVE-2021-22898, CVE-2021-22925, CVE-2021-22924

Affected VMware Products and Versions

Severity is medium unless otherwise noted.

  • Platform Automation Toolkit
    • 4.4.x versions prior to 4.4.23
    • 5.0.x versions prior to 5.0.17
  • Isolation Segment
    • 2.7.x versions prior to 2.7.35
    • 2.9.x versions prior to 2.9.23
    • 2.10.x versions prior to 2.10.15
    • 2.11.x versions prior to 2.11.4
  • VMware Tanzu Application Service for VMs
    • 2.7.x versions prior to 2.7.37
    • 2.9.x versions prior to 2.9.25
    • 2.10.x versions prior to 2.10.17
    • 2.11.x versions prior to 2.11.5


Users of affected products are strongly encouraged to follow the mitigation below. On the Tanzu Network product page for each release, check the Depends On section and/or Release Notes for this information. Releases that have fixed this issue include:

  • Platform Automation Toolkit
    • 4.4.23
    • 5.0.17
  • Isolation Segment
    • 2.7.35
    • 2.9.23
    • 2.10.15
    • 2.11.4
  • VMware Tanzu Application Service for VMs
    • 2.7.37
    • 2.9.25
    • 2.10.17
    • 2.11.5



2021-09-13: Initial vulnerability report published.