Description
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.
Metrics
CVSS 3.0 4.4/10
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:NWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Jul 11, 2018
- Last modified
- Jun 17, 2026
- NVD status
- Modified