National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2014-8989 Detail

Description

The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a "negative groups" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.

Source:  MITRE      Last Modified:  11/29/2014

Quick Info

CVE Dictionary Entry:
CVE-2014-8989
Original release date:
11/29/2014
Last revised:
01/02/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.6 MEDIUM
Vector:
(AV:L/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html External Source FEDORA FEDORA-2015-0517
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html External Source FEDORA FEDORA-2015-0515
http://thread.gmane.org/gmane.linux.man/7385/ Exploit External Source CONFIRM http://thread.gmane.org/gmane.linux.man/7385/
http://www.mandriva.com/security/advisories?name=MDVSA-2015:058 External Source MANDRIVA MDVSA-2015:058
http://www.openwall.com/lists/oss-security/2014/11/20/4 External Source MLIST [oss-security] 20141120 Re: Linux user namespaces can bypass group-based restrictions - Linux kernel
http://www.securityfocus.com/bid/71154 External Source BID 71154
http://www.ubuntu.com/usn/USN-2515-1 External Source UBUNTU USN-2515-1
http://www.ubuntu.com/usn/USN-2516-1 External Source UBUNTU USN-2516-1
http://www.ubuntu.com/usn/USN-2517-1 External Source UBUNTU USN-2517-1
http://www.ubuntu.com/usn/USN-2518-1 External Source UBUNTU USN-2518-1

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.8:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.9:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.10:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.11:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.12:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.13:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.15:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.16:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.17:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.18:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.19:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.20:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.21:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.22:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.23:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.24:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.26:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.27:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.28:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.32:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.33:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.34:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.35:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.36:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.37:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.38:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.39:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.40:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.41:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.42:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.43:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.44:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.45:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.46:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.47:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.48:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.49:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.50:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.51:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.52:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.53:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.54:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.55:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.56:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.57:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.58:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.59:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.60:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.61:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.62:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.63:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.64:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.65:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.66:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.67:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.68:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.7:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.8:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.9:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.1.10:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.2:*:*:*:*:*:x86:*
cpe:2.3:o:linux:linux_kernel:3.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.10:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.10.0:*:*:*:*:*:arm64:*
cpe:2.3:o:linux:linux_kernel:3.10.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.10.1:*:*:*:*:*:arm64:*
cpe:2.3:o:linux:linux_kernel:3.10.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.10.2:*:*:*:*:*:arm64:*
cpe:2.3:o:linux:linux_kernel:3.10.3:*:*:*:*:*:*:*
Showing 100 of 204 CPEs, view all CPEs here.

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