It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2018-07-11T13:00:00

Updated: 2024-08-06T02:59:03.056Z

Reserved: 2016-11-23T00:00:00

Link: CVE-2016-9604

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-07-11T13:29:00.207

Modified: 2023-11-07T02:37:15.323

Link: CVE-2016-9604

cve-icon Redhat

Severity : Low

Publid Date: 2017-04-18T00:00:00Z

Links: CVE-2016-9604 - Bugzilla