Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title libx11, libxrender vulnerability
Informations
Name USN-2568-1 First vendor Publication 2015-04-13
Vendor Ubuntu Last vendor Modification 2015-04-13
Severity (Vendor) N/A Revision N/A

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
 
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Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS

Summary:

libx11 could be made to crash or run programs if it processed specially crafted data.

Software Description: - libxrender: X11 Rendering Extension client library - libx11: X11 client-side library

Details:

Abhishek Arya discovered that libX11 incorrectly handled memory in the MakeBigReq macro. A remote attacker could use this issue to cause applications to crash, resulting in a denial of service, or possibly execute arbitrary code.

In addition, following the macro fix in libx11, a number of other packages have also been rebuilt as security updates including libxrender, libxext, libxi, libxfixes, libxrandr, libsdl1.2, libxv, libxp, and xserver-xorg-video-vmware.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.10:
libxrender1 1:0.9.8-1build0.14.10.1

Ubuntu 14.04 LTS:
libxrender1 1:0.9.8-1build0.14.04.1

Ubuntu 12.04 LTS:
libx11-dev 2:1.4.99.1-0ubuntu2.3
libxrender1 1:0.9.6-2ubuntu0.2

After a standard system update you need to reboot your computer to make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2568-1
CVE-2013-7439

Package Information:
https://launchpad.net/ubuntu/+source/libxrender/1:0.9.8-1build0.14.10.1
https://launchpad.net/ubuntu/+source/libxrender/1:0.9.8-1build0.14.04.1
https://launchpad.net/ubuntu/+source/libx11/2:1.4.99.1-0ubuntu2.3
https://launchpad.net/ubuntu/+source/libxrender/1:0.9.6-2ubuntu0.2

Original Source

Url : http://www.ubuntu.com/usn/USN-2568-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-189 Numeric Errors (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 34
Application 11
Os 3
Os 1

Nessus® Vulnerability Scanner

Date Description
2015-08-04 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2015-1334-1.nasl - Type : ACT_GATHER_INFO
2015-04-15 Name : The remote Debian host is missing a security update.
File : debian_DLA-199.nasl - Type : ACT_GATHER_INFO
2015-04-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3224.nasl - Type : ACT_GATHER_INFO
2015-04-14 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2568-1.nasl - Type : ACT_GATHER_INFO
2014-10-14 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-1436.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
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3
Date Informations
2015-04-20 21:31:36
  • Multiple Updates
2015-04-16 21:31:35
  • Multiple Updates
2015-04-15 13:28:36
  • Multiple Updates
2015-04-13 21:25:44
  • First insertion