USN-4428-1: Python vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Description

It was discovered that Python documentation had a misleading information. A security issue could be possibly caused by wrong assumptions of this information. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-17514)

It was discovered that Python incorrectly handled certain TAR archives. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-20907)

It was discovered that incorrectly handled certain ZIP files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-9674)

It was discovered that Python incorrectly handled certain IP values. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-14422)

CVEs contained in this USN include: CVE-2019-20907, CVE-2019-9674, CVE-2019-17514, CVE-2020-14422.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs3
  • All versions prior to 0.200.0
• Xenial Stemcells
  • 170.x versions prior to 170.223
  • 250.x versions prior to 250.202
  • 315.x versions prior to 315.189
  • 456.x versions prior to 456.116
  • 621.x versions prior to 621.78
  • All other stemcells not listed.
• CF Deployment
  • All versions prior to v13.9.0

Mitigation

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

• cflinuxfs3
  • Upgrade All versions to 0.200.0 or greater
• Xenial Stemcells
  • Upgrade 170.x versions to 170.223 or greater
  • Upgrade 250.x versions to 250.202 or greater
  • Upgrade 315.x versions to 315.189 or greater
  • Upgrade 456.x versions to 456.116 or greater
  • Upgrade 621.x versions to 621.78 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • Upgrade All versions to v13.9.0 or greater

History

2020-08-27: Initial vulnerability report published.