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USN-4882-1: Ruby vulnerabilities


Severity

Medium

Vendor

VMware Tanzu

Versions Affected
  • Canonical Ubuntu 18.04
Description

It was discovered that the Ruby JSON gem incorrectly handled certain JSON files. If a user or automated system were tricked into parsing a specially crafted JSON file, a remote attacker could use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2020-10663)

It was discovered that Ruby incorrectly handled certain socket memory operations. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-10933)

It was discovered that Ruby incorrectly handled certain transfer-encoding headers when using Webrick. A remote attacker could possibly use this issue to bypass a reverse proxy. (CVE-2020-25613)

CVEs contained in this USN include: CVE-2020-10663, CVE-2020-10933, CVE-2020-25613

Affected VMware Products and Versions

Severity is medium unless otherwise noted.

  • 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
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
    • 2.11.0
References
History

2021-09-13: Initial vulnerability report published.