CVE-2018-10936
A weakness was found in postgresql-jdbc. It was possible to provide an SSL Factory and not check the host name if a host name verifier was not provided to the driver. This could lead to a condition where a man-in-the-middle attacker could masquerade as a trusted server by providing a certificate for the wrong host, as long as it was signed by a trusted CA.
Find out more about CVE-2018-10936 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v3 metrics
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 8.1 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | High |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Virtualization 4 | postgresql-jdbc | Will not fix |
| Red Hat Satellite 5 | rh-postgresql95-postgresql | Under investigation |
| Red Hat Mobile Application Platform On-Premise 4 | millicore | Not affected |
| Red Hat Enterprise Linux 7 | postgresql-jdbc | Affected |
| Red Hat Enterprise Linux 6 | postgresql-jdbc | Will not fix |
| Red Hat Ansible Tower 3 for RHEL 7 | postgresql96 | Not affected |
Acknowledgements
Red Hat would like to thank the PostgreSQL project for reporting this issue.Mitigation
Applications using postgresql-jdbc should have their SSL configuration reviewed to ensure that host name verification is not disabled and only trusted CAs are accepted.