National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2014-7843 Detail

Current Description

The __clear_user function in arch/arm64/lib/clear_user.S in the Linux kernel before 3.17.4 on the ARM64 platform allows local users to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.9 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
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=97fc15436b36ee3956efad83e22a557991f7d19d Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4 Vendor Advisory
http://www.openwall.com/lists/oss-security/2014/11/13/5
http://www.securityfocus.com/bid/71082
https://bugzilla.redhat.com/show_bug.cgi?id=1163744 Patch Vendor Advisory
https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d Patch Vendor Advisory

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:*:*:*:*:*:*:arm64:*
     Show Matching CPE(s)
Up to (including)
3.17.3


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-7843
NVD Published Date:
11/29/2014
NVD Last Modified:
01/22/2015