Severity

medium

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 22.04

Jingzhou Fu discovered that PostgreSQL incorrectly handled certain unknown arguments in aggregate function calls. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2023-5868) Pedro Gallegos discovered that PostgreSQL incorrectly handled modifying certain SQL array values. A remote attacker could use this issue to obtain sensitive information, or possibly execute arbitrary code. (CVE-2023-5869) Hemanth Sandrana and Mahendrakar Srinivasarao discovered that PostgreSQL allowed the pg_signal_backend role to signal certain superuser processes, contrary to expectations. (CVE-2023-5870) Update Instructions: Run `sudo pro fix USN-6538-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: postgresql-server-dev-12 - 12.17-0ubuntu0.20.04.1 libecpg6 - 12.17-0ubuntu0.20.04.1 libpq-dev - 12.17-0ubuntu0.20.04.1 libpgtypes3 - 12.17-0ubuntu0.20.04.1 postgresql-plperl-12 - 12.17-0ubuntu0.20.04.1 postgresql-pltcl-12 - 12.17-0ubuntu0.20.04.1 libecpg-dev - 12.17-0ubuntu0.20.04.1 postgresql-plpython3-12 - 12.17-0ubuntu0.20.04.1 libpq5 - 12.17-0ubuntu0.20.04.1 postgresql-doc-12 - 12.17-0ubuntu0.20.04.1 postgresql-12 - 12.17-0ubuntu0.20.04.1 postgresql-client-12 - 12.17-0ubuntu0.20.04.1 libecpg-compat3 - 12.17-0ubuntu0.20.04.1 No subscription required.

Fixed and/or Unaffected VMware Products and Versions

• Cflinuxfs4
• 1.57.0 or greater
• CF Deployment
• 35.0.0 or greater
• Jammy Stemcells
• 1.327 or greater
• Isolation Segment
• 4.0.14+LTS-T or greater
• 5.0.4 or greater
• 6.0.x unaffected
• VMware Tanzu Application Service for VMs
• 4.0.14+LTS-T or greater
• 5.0.4 or greater
• 6.0.x unaffected

References

https://ubuntu.com/security/notices/USN-6538-1

https://www.cloudfoundry.org/blog/usn-6538-1

https://cve.mitre.org/cgi-bin/cvename.cgi?name=usn-6538-1

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/24799

History

2023-12-06: Initial vulnerability report published.