Severity

Medium

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 16.04
• Canonical Ubuntu 18.04

Description

USN-4754-1 fixed vulnerabilities in Python. Because of a regression, a subsequent update removed the fix for CVE-2021-3177. This update reinstates the security fix for CVE-2021-3177.

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)

CVEs contained in this USN include: CVE-2021-3177

Affected VMware Products and Versions

Severity is medium unless otherwise noted.

• 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://people.canonical.com/~ubuntu-security/cve/CVE-2021-3177
• https://ubuntu.com/security/notices/USN-4754-4
• https://cloudfoundry.org/blog/usn-4754-4

History

2021-04-16: Initial vulnerability report published.