CVE-2014-4014

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Summary

CVECVE-2014-4014
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-06-23 11:21:17 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.

Risk And Classification

Primary CVSS: v2.0 6.2 from [email protected]

AV:L/AC:H/Au:N/C:C/I:C/A:C

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:H/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Bug 1107966 – CVE-2014-4014 Kernel: possible privilege escalation in user namespace af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
Linux Kernel inode_capable() Incorrect Capability Check Lets Local Users Gain Elevated Privileges - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
Linux Kernel CVE-2014-4014 Local Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Linux Kernel <= 3.13 - Local Privilege Escalation PoC (gid) af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com Third Party Advisory, VDB Entry
Android Security Bulletin—December 2016 | Android Open Source Project af854a3a-2127-422b-91ae-364da2661108 source.android.com Third Party Advisory
fs,userns: Change inode_capable to capable_wrt_inode_uidgid · torvalds/linux@23adbe1 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Third Party Advisory
oss-security - CVE-2014-4014: Linux kernel user namespace bug af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Vendor Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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