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CentOS Linux: CVE-2016-9604: Important: kernel security, bug fix, and enhancement update (Multiple Advisories)

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CentOS Linux: CVE-2016-9604: Important: kernel security, bug fix, and enhancement update (Multiple Advisories)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published
07/11/2018
Created
08/29/2019
Added
08/28/2019
Modified
05/25/2023

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.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

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