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CVE-2016-9604

Published: Jul 11, 2018Updated: Nov 21, 2024 Sources: CVE List NVDCWE-732
NVD MITRE
4.4CVSSMEDIUM
EPSS Score
0.3%
Top 82.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:NI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-732CWE-347

Affected Products

linux kernellinux
On-premOS
Operating Systems
securitykernel
Mixed
Operating Systems / linux-distro
linuxoss-projectOperating Systemsaka the linux kernel
kerneloss-projectOperating Systems

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Privilege Escalation
View detailed technique mapping

References

http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html
people.canonical.com
http://www.securityfocus.com/bid/102135
securityfocus.com
https://access.redhat.com/errata/RHSA-2017:1842
access.redhat.com
and 5 more references View all →

Timeline

Published
Jul 11, 2018
Last Updated
Nov 21, 2024

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