Cloud Foundry Logo
blog single gear
Security Advisory

USN-5247-1: Vim vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 18.04

Description

It was discovered that vim incorrectly handled parsing of filenames in its search functionality. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service. This issue only affected Ubuntu 21.10. (CVE-2021-3973) It was discovered that vim incorrectly handled memory when opening and searching the contents of certain files. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges. This issue only affected Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2021-3974) It was discovered that vim incorrectly handled memory when opening and editing certain files. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges. (CVE-2021-3984) It was discovered that vim incorrectly handled memory when opening and editing certain files. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges. (CVE-2021-4019) It was discovered that vim incorrectly handled memory when opening and editing certain files. If a user was tricked into opening a specially crafted file, an attacker could crash the application, leading to a denial of service, or possibly achieve code execution with user privileges.(CVE-2021-4069)

CVEs contained in this USN include: CVE-2021-3973, CVE-2021-3974, CVE-2021-3984, CVE-2021-4019, CVE-2021-4069.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • Bionic Stemcells
    • 1.x versions prior to 1.59
    • All other stemcells not listed.
  • cflinuxfs3
    • All versions prior to 0.273.0
  • CF Deployment
    • All versions prior to 18.0.0

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

  • Bionic Stemcells
    • Upgrade 1.x versions to 1.59 or greater
    • All other stemcells should be upgraded to the latest version available onĀ bosh.io.
  • cflinuxfs3
    • Upgrade all versions to 0.273.0 or greater
  • CF Deployment
    • Upgrade all versions to 18.0.0 or greater

History

2022-03-08: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

SEE ALL ARTICLES