Severity

Medium

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 18.04

Description

It was discovered that DjVuLibre incorrectly handled certain memory operations. If a user or automated system were tricked into processing a specially crafted DjVu file, a remote attacker could cause applications to hang or crash, resulting in a denial of service, or possibly execute arbitrary code.

CVEs contained in this USN include: CVE-2021-32493, CVE-2021-32490, CVE-2021-3500, CVE-2021-32492, CVE-2021-32491

Affected VMware Products and Versions

Severity is medium unless otherwise noted.

Vulnerable Cloud Foundry components individually listed here.

• Isolation Segment
  • 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
  • 2.11.x versions prior to 2.11.1
• VMware Tanzu Application Service for VMs
  • 2.7.x versions prior to 2.7.33
  • 2.8.x versions prior to 2.8.27
  • 2.9.x versions prior to 2.9.21
  • 2.10.x versions prior to 2.10.13
  • 2.11.x versions prior to 2.11.1

Mitigation

Users of affected products are strongly encouraged to follow the mitigation below. 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:

• Isolation Segment
  • 2.7.32
  • 2.8.26
  • 2.9.20
  • 2.10.12
  • 2.11.1
• VMware Tanzu Application Service for VMs
  • 2.7.33
  • 2.8.27
  • 2.9.21
  • 2.10.13
  • 2.11.1

References

• https://people.canonical.com/~ubuntu-security/cve/CVE-2021-32493
• https://people.canonical.com/~ubuntu-security/cve/CVE-2021-32490
• https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3500
• https://people.canonical.com/~ubuntu-security/cve/CVE-2021-32492
• https://people.canonical.com/~ubuntu-security/cve/CVE-2021-32491
• https://ubuntu.com/security/notices/USN-4957-1
• https://cloudfoundry.org/blog/usn-4957-1

History

2021-06-15: Initial vulnerability report published.