Severity

Unknown

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 14.04
• Canonical Ubuntu 16.04
• Canonical Ubuntu 18.04

Description

USN-4754-1 fixed a vulnerability in Python. The fix for CVE-2021-3177 introduced a regression in Python 2.7. This update reverts the security fix pending further investigation.

Original advisory details:

It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)

Affected VMware Products and Versions

Severity is unknown unless otherwise noted.

Impacted stemcells may be updated independently of upgrading Tanzu Application Service or Isolation Segment.

• Platform Automation Toolkit
  • 4.0.x versions prior to 4.0.13
  • 4.1.x versions prior to 4.1.13
  • 4.2.x versions prior to 4.2.8
  • 4.3.x versions prior to 4.3.5
• Tanzu Greenplum for Kubernetes
  • All versions prior to 2.0.0
• Isolation Segment
  • 2.7.x versions prior to 2.7.31
  • 2.8.x versions prior to 2.8.25
  • 2.9.x versions prior to 2.9.19
  • 2.10.x versions prior to 2.10.11
• Operations Manager
  • 2.7.x versions prior to 2.7.30
  • 2.8.x versions prior to 2.8.16
  • 2.9.x versions prior to 2.9.18
  • 2.10.x versions prior to 2.10.9
• VMware Tanzu Application Service for VMs
  • 2.7.x versions prior to 2.7.32
  • 2.8.x versions prior to 2.8.26
  • 2.9.x versions prior to 2.9.20
  • 2.10.x versions prior to 2.10.12

Mitigation

Users of affected products are strongly encouraged to follow the mitigation below. It is recommended to upgrade the affected Cloud Foundry components listed here if applicable. Upgrade VMware Tanzu products that use earlier versions of CF components to new Tanzu releases using new versions linked above. 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
  • 4.0.13
  • 4.1.13
  • 4.2.8
  • 4.3.5
• Tanzu Greenplum for Kubernetes
  • 2.0.0
• Isolation Segment
  • 2.7.31
  • 2.8.25
  • 2.9.19
  • 2.10.11
• Operations Manager
  • 2.7.30
  • 2.8.16
  • 2.9.18
  • 2.10.9
• VMware Tanzu Application Service for VMs
  • 2.7.32
  • 2.8.26
  • 2.9.20
  • 2.10.12
  • 2.11.0

References

• https://ubuntu.com/security/notices/USN-4754-2
• https://cloudfoundry.org/blog/usn-4754-2

History

2021-04-16: Initial vulnerability report published.