National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2014-9710 Detail

Current Description

The Btrfs implementation in the Linux kernel before 3.19 does not ensure that the visible xattr state is consistent with a requested replacement, which allows local users to bypass intended ACL settings and gain privileges via standard filesystem operations (1) during an xattr-replacement time window, related to a race condition, or (2) after an xattr-replacement attempt that fails because the data does not fit.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 6.9 MEDIUM
Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.4


Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5f5bc6b1e2d5a6f827bc860ef2dc5b6f365d1339
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html
http://www.openwall.com/lists/oss-security/2015/03/24/11
http://www.securitytracker.com/id/1032418
https://bugzilla.redhat.com/show_bug.cgi?id=1205079
https://github.com/torvalds/linux/commit/5f5bc6b1e2d5a6f827bc860ef2dc5b6f365d1339

Technical Details

Vulnerability Type (View All)

  • Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (CWE-362)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
3.18.8


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-9710
NVD Published Date:
05/27/2015
NVD Last Modified:
12/30/2016