Severity

medium

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 18.04

Description

It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated system were tricked into processing a specially crafted gzip archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-28831) It was discovered that BusyBox incorrectly handled certain malformed LZMA archives. If a user or automated system were tricked into processing a specially crafted LZMA archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly leak sensitive information. (CVE-2021-42374) Vera Mens, Uri Katz, Tal Keren, Sharon Brizinov, and Shachar Menashe discovered that BusyBox incorrectly handled certain awk patterns. If a user or automated system were tricked into processing a specially crafted awk pattern, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-42378, CVE-2021-42379, CVE-2021-42380, CVE-2021-42381, CVE-2021-42382, CVE-2021-42384, CVE-2021-42385, CVE-2021-42386)

CVEs contained in this USN include: CVE-2021-28831, CVE-2021-42374, CVE-2021-42378, CVE-2021-42379, CVE-2021-42380, CVE-2021-42381, CVE-2021-42382, CVE-2021-42384, CVE-2021-42385, CVE-2021-42386

Affected VMware Products and Versions

Severity is medium unless otherwise noted.

• Isolation Segment
  • 2.7.x versions prior to 2.7.41
  • 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 2.7.46
  • 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
  • 2.7.41
  • 2.10.21
  • 2.11.10
  • 2.12.4
• VMware Tanzu Application Service for VMs
  • 2.7.46
  • 2.10.26
  • 2.11.14
  • 2.12.7

References

• https://ubuntu.com/security/CVE-2021-28831
• https://ubuntu.com/security/CVE-2021-42374
• https://ubuntu.com/security/CVE-2021-42378
• https://ubuntu.com/security/CVE-2021-42379
• https://ubuntu.com/security/CVE-2021-42380
• https://ubuntu.com/security/CVE-2021-42381
• https://ubuntu.com/security/CVE-2021-42382
• https://ubuntu.com/security/CVE-2021-42384
• https://ubuntu.com/security/CVE-2021-42385
• https://ubuntu.com/security/CVE-2021-42386
• https://ubuntu.com/security/notices/USN-5179-1
• https://cloudfoundry.org/blog/usn-5179-1

History

2022-03-17: Initial vulnerability report published.