NVD - CVE-2014-7843

CVE-2014-7843 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

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
Description Last Modified: 11/29/2014

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)

Code (CWE-17)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:arm64:* versions up to (including) 3.17.3

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Initial CVE Analysis - 12/1/2014 8:42:30 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		Configuration 1 OR cpe:2.3:o:linux:linux_kernel:3.17.3::::::arm64:* (and previous)
Added	CVSS V2		(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Added	CWE		CWE-17
Changed	Reference Type	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=97fc15436b36ee3956efad83e22a557991f7d19d No Types Assigned	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=97fc15436b36ee3956efad83e22a557991f7d19d Advisory
Changed	Reference Type	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4 No Types Assigned	http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4 Advisory
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=1163744 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=1163744 Advisory, Patch
Changed	Reference Type	https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d No Types Assigned	https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d Advisory, Patch

Quick Info

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

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National Vulnerability Database