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Last updated: 4/19/2014

CVE Publication rate: 20.1

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National Cyber Awareness System

Vulnerability Summary for CVE-2013-4220

Original release date: 08/24/2013
Last revised: 08/26/2013
Source: US-CERT/NIST

Overview

The bad_mode function in arch/arm64/kernel/traps.c in the Linux kernel before 3.9.5 on the ARM64 platform allows local users to cause a denial of service (system crash) via vectors involving an attempted register access that triggers an unexpected value in the Exception Syndrome Register (ESR).

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/AU:N/C:N/I:N/A:C) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.5
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9955ac47f4ba1c95ecb6092aeaefb40a22e99268
Type: Patch Information; Exploit
External Source: CONFIRM
Name: https://github.com/torvalds/linux/commit/9955ac47f4ba1c95ecb6092aeaefb40a22e99268
Type: Patch Information; Exploit
External Source: MLIST
Name: [oss-security] 20130808 Re: CVE Request: Linux kernel: arm64: unhandled el0 traps
Type: Patch Information
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=996380

Technical Details

Vulnerability Type (View All)