USN-6467-1: Kerberos vulnerability

23780

04 December 2023

04 December 2023

CLOSED

MEDIUM

CVE-2023-36054

Severity

medium

Vendor

VMware Tanzu

Versions Affected

  • Canonical Ubuntu 16.04
  • Canonical Ubuntu 18.04
  • Canonical Ubuntu 22.04

Description

Robert Morris discovered that Kerberos did not properly handle memory access when processing RPC data through kadmind, which could lead to the freeing of uninitialized memory. An authenticated remote attacker could possibly use this issue to cause kadmind to crash, resulting in a denial of service. Update Instructions: Run `sudo pro fix USN-6467-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libkadm5srv-mit9 - 1.13.2+dfsg-5ubuntu2.2+esm4 libk5crypto3 - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-user - 1.13.2+dfsg-5ubuntu2.2+esm4 libgssrpc4 - 1.13.2+dfsg-5ubuntu2.2+esm4 libkrb5support0 - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-doc - 1.13.2+dfsg-5ubuntu2.2+esm4 libkrb5-dev - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-pkinit - 1.13.2+dfsg-5ubuntu2.2+esm4 libkrb5-3 - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-kdc-ldap - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-otp - 1.13.2+dfsg-5ubuntu2.2+esm4 libkadm5clnt-mit9 - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-gss-samples - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-multidev - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-locales - 1.13.2+dfsg-5ubuntu2.2+esm4 libgssapi-krb5-2 - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-kdc - 1.13.2+dfsg-5ubuntu2.2+esm4 libkrad-dev - 1.13.2+dfsg-5ubuntu2.2+esm4 libkdb5-8 - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-k5tls - 1.13.2+dfsg-5ubuntu2.2+esm4 libkrad0 - 1.13.2+dfsg-5ubuntu2.2+esm4 krb5-admin-server - 1.13.2+dfsg-5ubuntu2.2+esm4 Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

CVEs contained in this USN include: CVE-2023-36054

Affected VMware Products and Versions

Severity is medium unless otherwise noted.

  • Platform Automation Toolkit
    • 4.4.x versions prior to 4.4.32
    • 5.0.x versions prior to 5.0.25
    • 5.1.x versions prior to 5.1.2
  • Isolation Segment
    • 2.11.x versions prior to 2.11.42, or later versions with Xenial Stemcells prior to 621.753
    • 2.13.x versions prior to 2.13.27, or later versions with Xenial Stemcells prior to 621.753
    • 3.0.x versions prior to 3.0.20
    • 4.0.x versions prior to 4.0.12+LTS-T
  • Operations Manager
    • 2.10.x versions prior to 2.10.66
  • VMware Tanzu Application Service for VMs
    • 2.11.x versions prior to 2.11.48, or later versions with Xenial Stemcells prior to 621.753
    • 2.13.x versions prior to 2.13.30, or later versions with Xenial Stemcells prior to 621.753
    • 3.0.x versions prior to 3.0.20
    • 4.0.x versions prior to 4.0.12+LTS-T

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:
  • Platform Automation Toolkit
    • 4.4.32
    • 5.0.25
    • 5.1.2
  • Isolation Segment
    • 2.11.42, and upgrade Xenial Stemcells to 621.753 or greater
    • 2.13.27, and upgrade Xenial Stemcells to 621.753 or greater
    • 3.0.20
    • 4.0.12+LTS-T
  • Operations Manager
    • 2.10.66
  • VMware Tanzu Application Service for VMs
    • 2.11.48, and upgrade Xenial Stemcells to 621.753 or greater
    • 2.13.30, and upgrade Xenial Stemcells to 621.753 or greater
    • 3.0.20
    • 4.0.12+LTS-T

References

History

2023-12-04: Initial vulnerability report published.