CVE-2014-7843

Severity CVSS v4.0:

Pending analysis

Type:

CWE-17 Code Errors

Publication date:

30/11/2014

Last modified:

12/04/2025

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.

Impact

Vector 2.0

AV:L/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 4.90 MEDIUM
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0

4.90

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel:::::::arm64:*		3.17.3 (including)

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D97fc15436b36ee3956efad83e22a557991f7d19d
http://secunia.com/advisories/62305
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4
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
https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D97fc15436b36ee3956efad83e22a557991f7d19d
http://secunia.com/advisories/62305
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4
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
https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d