Severity

medium

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 18.04

Description

It was discovered that Ruby incorrectly handled certain HTML files. An attacker could possibly use this issue to cause a crash. This issue only affected Ubuntu 20.04 LTS, Ubuntu 21.04, and Ubuntu 21.10. (CVE-2021-41816) It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a regular expression denial of service. (CVE-2021-41817) It was discovered that Ruby incorrectly handled certain cookie names. An attacker could possibly use this issue to access or expose sensitive information. (CVE-2021-41819)

CVEs contained in this USN include: CVE-2021-41816, CVE-2021-41817, CVE-2021-41819

Affected VMware Products and Versions

Severity is medium unless otherwise noted.

• Isolation Segment
  • 2.7.x versions prior to 2.7.42
  • 2.10.x versions prior to 2.10.21
  • 2.11.x versions prior to 2.11.10
  • 2.12.x versions prior to 2.12.4
• VMware Tanzu Application Service for VMs
  • 2.7.x versions prior to 2.7.47
  • 2.10.x versions prior to 2.10.26
  • 2.11.x versions prior to 2.11.14
  • 2.12.x versions prior to 2.12.7

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
  • 2.7.42
  • 2.10.21
  • 2.11.10
  • 2.12.4
• VMware Tanzu Application Service for VMs
  • 2.7.47
  • 2.10.26
  • 2.11.14
  • 2.12.7

References

• https://ubuntu.com/security/CVE-2021-41816
• https://ubuntu.com/security/CVE-2021-41817
• https://ubuntu.com/security/CVE-2021-41819
• https://ubuntu.com/security/notices/USN-5235-1
• https://cloudfoundry.org/blog/usn-5235-1

History

2022-03-17: Initial vulnerability report published.