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USN-5020-1: Ruby vulnerabilities


Severity

Medium

Vendor

VMware Tanzu

Versions Affected
  • Canonical Ubuntu 18.04
Description

It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2021-31799)

It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to conduct port scans and service banner extractions. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-31810)

It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to perform man-in-the-middle attackers to bypass the TLS protection. (CVE-2021-32066)

CVEs contained in this USN include: CVE-2021-31799, CVE-2021-32066, CVE-2021-31810

Affected VMware Products and Versions

Severity is medium unless otherwise noted.

  • Isolation Segment
    • 2.7.x versions prior to 2.7.35
    • 2.9.x versions prior to 2.9.23
    • 2.10.x versions prior to 2.10.15
    • 2.11.x versions prior to 2.11.4
  • VMware Tanzu Application Service for VMs
    • 2.7.x versions prior to 2.7.37
    • 2.9.x versions prior to 2.9.25
    • 2.10.x versions prior to 2.10.17
    • 2.11.x versions prior to 2.11.5
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
    • 2.7.35
    • 2.9.23
    • 2.10.15
    • 2.11.4
  • VMware Tanzu Application Service for VMs
    • 2.7.37
    • 2.9.25
    • 2.10.17
    • 2.11.5
References
History

2021-09-13: Initial vulnerability report published.