Improper Verification of Cryptographic Signature Affecting kernel-uek-debug package, versions <0:2.6.39-400.297.6.el5uek
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Test your applications- Snyk ID SNYK-ORACLE5-KERNELUEKDEBUG-2520630
- published 10 Apr 2022
- disclosed 11 Jul 2018
Introduced: 11 Jul 2018
CVE-2016-9604 Open this link in a new tabHow to fix?
Upgrade Oracle:5
kernel-uek-debug
to version 0:2.6.39-400.297.6.el5uek or higher.
This issue was patched in ELSA-2017-3607
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug
package and not the kernel-uek-debug
package as distributed by Oracle
.
See How to fix?
for Oracle:5
relevant fixed versions and status.
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.
References
- https://linux.oracle.com/cve/CVE-2016-9604.html
- https://linux.oracle.com/errata/ELSA-2017-1842.html
- https://linux.oracle.com/errata/ELSA-2017-1842-1.html
- https://linux.oracle.com/errata/ELSA-2017-3605.html
- https://linux.oracle.com/errata/ELSA-2017-3606.html
- https://linux.oracle.com/errata/ELSA-2017-3607.html
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604
- https://bugzilla.novell.com/show_bug.cgi?id=1035576
- http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html
- https://access.redhat.com/errata/RHSA-2017:2669
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:1842
- http://www.securityfocus.com/bid/102135