CVE-2017-17448

Current Description

net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces.

Basic Data

PublishedDecember 07, 2017
Last ModifiedOctober 03, 2019
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-862
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS 2 - Access VectorLOCAL
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactPARTIAL
CVSS 2 - Availability ImpactPARTIAL
CVSS 2 - Base Score4.6
SeverityMEDIUM
Exploitability Score3.9
Impact Score6.4
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

CVSS 3 - Version3.0
CVSS 3 - Vector StringCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3 - Attack VectorLOCAL
CVSS 3 - Attack ComplexityLOW
CVSS 3 - Privileges RequiredLOW
CVSS 3 - User InteractionNONE
CVSS 3 - ScopeUNCHANGED
CVSS 3 - Confidentiality ImpactHIGH
CVSS 3 - Integrity ImpactHIGH
CVSS 3 - Availability ImpactHIGH
CVSS 3 - Base Score7.8
CVSS 3 - Base SeverityHIGH
Exploitability Score1.8
Base SeverityHIGH

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3OSLinuxLinux Kernel********4.14.4

Vulnerable Software List

VendorProductVersions
Linux Linux Kernel *

References

NameSourceURLTags
102117http://www.securityfocus.com/bid/102117BIDThird Party Advisory VDB Entry
RHSA-2018:0654https://access.redhat.com/errata/RHSA-2018:0654REDHAT
RHSA-2018:0676https://access.redhat.com/errata/RHSA-2018:0676REDHAT
RHSA-2018:1062https://access.redhat.com/errata/RHSA-2018:1062REDHAT
https://patchwork.kernel.org/patch/10089373/https://patchwork.kernel.org/patch/10089373/MISCPatch Vendor Advisory
USN-3617-1https://usn.ubuntu.com/3617-1/UBUNTU
USN-3617-2https://usn.ubuntu.com/3617-2/UBUNTU
USN-3617-3https://usn.ubuntu.com/3617-3/UBUNTU
USN-3619-1https://usn.ubuntu.com/3619-1/UBUNTU
USN-3619-2https://usn.ubuntu.com/3619-2/UBUNTU
USN-3620-1https://usn.ubuntu.com/3620-1/UBUNTU
USN-3620-2https://usn.ubuntu.com/3620-2/UBUNTU
USN-3632-1https://usn.ubuntu.com/3632-1/UBUNTU
DSA-4073https://www.debian.org/security/2017/dsa-4073DEBIAN
DSA-4082https://www.debian.org/security/2018/dsa-4082DEBIAN