USN-5021-1: curl vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Description

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 Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Bionic Stemcells
  • 1.x versions prior to 1.22
  • All other stemcells not listed.
• cflinuxfs3
  • All versions prior to 0.250.0
• CF Deployment
  • All versions prior to 16.22.0

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

• Bionic Stemcells
  • Upgrade 1.x versions to 1.22 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• cflinuxfs3
  • Upgrade all versions to 0.250.0 or greater
• CF Deployment
  • Upgrade all versions to 16.22.0 or greater

History

2021-09-03: Initial vulnerability report published.