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.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-922-1 linux security update
EUVD EUVD EUVD-2016-10408 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.
Ubuntu USN Ubuntu USN USN-3312-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3312-2 Linux kernel (Xenial HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3314-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3361-1 Linux kernel (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3422-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3422-2 Linux kernel (Trusty HWE) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

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: 2024-11-21T03:01:29.833

Link: CVE-2016-9604

cve-icon Redhat

Severity : Low

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

Links: CVE-2016-9604 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses