National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-7495 Detail

Current Description

fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 2.1 LOW
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824 Issue Tracking Patch Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2 Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/05/15/2 Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/98491
https://bugzilla.redhat.com/show_bug.cgi?id=1450261 Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824 Issue Tracking Patch Third Party Advisory
https://source.android.com/security/bulletin/2017-09-01

Technical Details

Vulnerability Type (View All)

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)
4.6.1


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7495
NVD Published Date:
05/15/2017
NVD Last Modified:
09/08/2017