All Vulnerability Reports

USN-4668-3: python-apt regression


Severity

Unknown

Vendor

VMware Tanzu

Versions Affected
  • Canonical Ubuntu 16.04
Description

USN-4668-1 fixed vulnerabilities in python-apt. The update caused a regression when using certain APIs with a file handle. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Kevin Backhouse discovered that python-apt incorrectly handled resources. A local attacker could possibly use this issue to cause python-apt to consume resources, leading to a denial of service.

Affected VMware Products and Versions

Severity is unknown unless otherwise noted.

Vulnerable Cloud Foundry components individually listed here.

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

  • Tanzu Greenplum for Kubernetes
    • All versions prior to 2.0.0
  • Isolation Segment
    • 2.7.x versions with Xenial Stemcells prior to 456.133
    • 2.8.x versions with Xenial Stemcells prior to 621.97
    • 2.9.x versions with Xenial Stemcells prior to 621.97
    • 2.10.x versions with Xenial Stemcells prior to 621.97
  • Operations Manager
    • 2.7 versions prior to 2.7.28
    • 2.9 versions prior to 2.9.16
    • 2.10 versions prior to 2.10.5
  • VMware Tanzu Application Service for VMs
    • 2.7.x versions with Xenial Stemcells prior to 456.133
    • 2.8.x versions with Xenial Stemcells prior to 621.97
    • 2.9.x versions with Xenial Stemcells prior to 621.97
    • 2.10.x versions with Xenial Stemcells prior to 621.97
Mitigation

Users of affected products are strongly encouraged to follow the mitigation below. The Cloud Foundry security team recommends upgrading the affected OSS 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:

  • Tanzu Greenplum for Kubernetes
    • 2.0.0
  • Isolation Segment
    • 2.7.x: Upgrade Xenial Stemcells to 456.133 or greater
    • 2.8.x: Upgrade Xenial Stemcells to 621.97 or greater
    • 2.9.x: Upgrade Xenial Stemcells to 621.97 or greater
    • 2.10.x: Upgrade Xenial Stemcells to 621.97 or greater
  • Operations Manager
    • 2.7.28
    • 2.9.16
    • 2.10.5
  • VMware Tanzu Application Service for VMs
    • 2.7.x: Upgrade Xenial Stemcells to 456.133 or greater
    • 2.8.x: Upgrade Xenial Stemcells to 621.97 or greater
    • 2.9.x: Upgrade Xenial Stemcells to 621.97 or greater
    • 2.10.x: Upgrade Xenial Stemcells to 621.97 or greater
References
History

2021-03-01: Initial vulnerability report published.