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CentOS Update for libsmbclient CESA-2014:1008 centos7

Information

Severity

Severity

High

Family

Family

CentOS Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.9

CVSSv2 Vector

CVSSv2 Vector

AV:A/AC:M/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

3 years ago

Summary

The remote host is missing an update for the 'libsmbclient' package(s) announced via the referenced advisory.

Insight

Insight

Samba is an open-source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information. A heap-based buffer overflow flaw was found in Samba's NetBIOS message block daemon (nmbd). An attacker on the local network could use this flaw to send specially crafted packets that, when processed by nmbd, could possibly lead to arbitrary code execution with root privileges. (CVE-2014-3560) This update also fixes the following bug: * Prior to this update, Samba incorrectly used the O_TRUNC flag when using the open(2) system call to access the contents of a file that was already opened by a different process, causing the file's previous contents to be removed. With this update, the O_TRUNC flag is no longer used in the above scenario, and file corruption no longer occurs. (BZ#1115490) All Samba users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the smb service will be restarted automatically.

Affected Software

Affected Software

libsmbclient on CentOS 7

Solution

Solution

Please install the updated packages.

Common Vulnerabilities and Exposures (CVE)

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1. Download Multipass

sudo snap install multipass

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multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

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curl -sL https://www.mageni.net/installation | sudo bash

1. If you don’t have it already, install Brew. Then, to install Multipass simply execute:

brew install --cask multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

2. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. Download the installer for Windows

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2. Ensure your network is private

Make sure your local network is designated as private, otherwise Windows prevents Multipass from starting.

3. Run the installer

You need to allow the installer to gain Administrator privileges.

4. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04

5. Log into the multipass instance

multipass shell mageni

6. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash