Executive Summary

Summary
Title kfreebsd-9 security update
Informations
Name DSA-2769 First vendor Publication 2013-10-08
Vendor Debian Last vendor Modification 2013-10-08
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Several vulnerabilities have been discovered in the FreeBSD kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems:

CVE-2013-5691

Loganaden Velvindron and Gleb Smirnoff discovered that the SIOCSIFADDR, SIOCSIFBRDADDR, SIOCSIFDSTADDR and SIOCSIFNETMASK ioctl requests do not perform input validation or verify the caller's credentials. Unprivileged user with the ability to run arbitrary code can cause any network interface in the system to perform the link layer actions associated with the above ioctl requests or trigger a kernel panic by passing a specially crafted address structure which causes a network interface driver to dereference an invalid pointer.

CVE-2013-5710

Konstantin Belousov discovered that the nullfs(5) implementation of the VOP_LINK(9) VFS operation does not check whether the source and target of the link are both in the same nullfs instance. It is therefore possible to create a hardlink from a location in one nullfs instance to a file in another, as long as the underlying (source) filesystem is the same. If multiple nullfs views into the same filesystem are mounted in different locations, a user may gain write access to files which are nominally on a read-only filesystem.

For the stable distribution (wheezy), these problems have been fixed in version 9.0-10+deb70.4.

We recommend that you upgrade your kfreebsd-9 packages.

Original Source

Url : http://www.debian.org/security/2013/dsa-2769

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 6

Nessus® Vulnerability Scanner

Date Description
2013-10-10 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2769.nasl - Type : ACT_GATHER_INFO
2013-10-02 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_4d87d357202c11e3be06000c29ee3065.nasl - Type : ACT_GATHER_INFO
2013-10-02 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_b72bad1c20ed11e3be06000c29ee3065.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2014-02-17 11:32:13
  • Multiple Updates
2013-10-08 17:19:22
  • First insertion