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Last updated: 12/20/2014 1:42:42 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2013-5666

Original release date: 09/23/2013
Last revised: 09/25/2013
Source: US-CERT/NIST

Overview

The sendfile system-call implementation in sys/kern/uipc_syscalls.c in the kernel in FreeBSD 9.2-RC1 and 9.2-RC2 does not properly pad transmissions, which allows local users to obtain sensitive information (kernel memory) via a length greater than the length of the file.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.7 (MEDIUM) (AV:L/AC:M/Au:N/C:C/I:N/A:N) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information

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External Source: SECTRACK
Name: 1029013
External Source: FREEBSD
Name: FreeBSD-SA-13:11
Type: Advisory
External Source: CONFIRM
Name: http://svnweb.freebsd.org/base?view=revision&revision=255442
External Source: OSVDB
Name: 97142

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/o:freebsd:freebsd:9.2:rc1
* cpe:/o:freebsd:freebsd:9.2:rc2

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
  • Information Leak / Disclosure (CWE-200)