Severity

high

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 18.04

Description

John Ouyang discovered that OpenSSL incorrectly handled decrypting SM2 data. A remote attacker could use this issue to cause applications using OpenSSL to crash, resulting in a denial of service, or possibly change application behaviour. (CVE-2021-3711)

Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1 strings. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2021-3712)

CVEs contained in this USN include: CVE-2021-3711, CVE-2021-3712

Affected VMware Products and Versions

Severity is high unless otherwise noted.

• Platform Automation Toolkit
  • 4.4.x versions prior to 4.4.24
  • 5.0.x versions prior to 5.0.18
• Isolation Segment
  • 2.7.x versions prior to 2.7.36
  • 2.9.x versions prior to 2.9.24
  • 2.10.x versions prior to 2.10.16
  • 2.11.x versions prior to 2.11.5
• VMware Tanzu Application Service for VMs
  • 2.7.x versions prior to 2.7.38
  • 2.9.x versions prior to 2.9.26
  • 2.10.x versions prior to 2.10.18
  • 2.11.x versions prior to 2.11.6

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:

• Platform Automation Toolkit
  • 4.4.24
  • 5.0.18
• Isolation Segment
  • 2.7.36
  • 2.9.24
  • 2.10.16
  • 2.11.5
• VMware Tanzu Application Service for VMs
  • 2.7.38
  • 2.9.26
  • 2.10.18
  • 2.11.6
  • 2.12.0

References

• https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3711
• https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3712
• https://ubuntu.com/security/notices/USN-5051-1
• https://cloudfoundry.org/blog/usn-5051-1

History

2021-12-07: Initial vulnerability report published.