The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of X.Org Server: memory corruption via Xext/shm Shmseg Resource Id

Synthesis of the vulnerability 

An attacker can generate a memory corruption via Xext/shm Shmseg Resource Id of X.Org Server, in order to trigger a denial of service, and possibly to run code.
Vulnerable systems: Debian, Solaris, Slackware, Ubuntu, XOrg Bundle ~ not comprehensive.
Severity of this threat: 2/4.
Creation date: 05/10/2017.
Références of this weakness: bulletinjan2018, CVE-2017-13721, DSA-4000-1, SSA:2017-279-03, USN-3453-1, VIGILANCE-VUL-24026.

Description of the vulnerability 

An attacker can generate a memory corruption via Xext/shm Shmseg Resource Id of X.Org Server, in order to trigger a denial of service, and possibly to run code.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer weakness bulletin impacts software or systems such as Debian, Solaris, Slackware, Ubuntu, XOrg Bundle ~ not comprehensive.

Our Vigil@nce team determined that the severity of this computer threat announce is medium.

The trust level is of type confirmed by the editor, with an origin of user account.

An attacker with a expert ability can exploit this threat announce.

Solutions for this threat 

X.Org Server: version 1.19.4.
The version 1.19.4 is fixed:
  https://www.x.org/

X.Org Server: patch for Xext/shm Shmseg Resource Id.
A patch is available:
  https://cgit.freedesktop.org/xorg/xserver/commit/?id=b95f25af141d33a65f6f821ea9c003f66a01e1f1

Debian 8/9: new xorg-server packages.
New packages are available:
  Debian 8: xorg-server 2:1.16.4-1+deb8u2
  Debian 9: xorg-server 2:1.19.2-1+deb9u2

Oracle Solaris: patch for third party software of January 2018 v1.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

Slackware: new xorg-server packages.
New packages are available:
  Slackware 14.0: xorg-server 1.12.4-*-4_slack14.0
  Slackware 14.1: xorg-server 1.14.3-*-5_slack14.1
  Slackware 14.2: xorg-server 1.18.3-*-4_slack14.2

Ubuntu: new xserver-xorg-core packages.
New packages are available:
  Ubuntu 17.04: xserver-xorg-core 2:1.19.3-1ubuntu1.2
  Ubuntu 16.04 LTS: xserver-xorg-core 2:1.18.4-0ubuntu0.6
  Ubuntu 14.04 LTS: xserver-xorg-core 2:1.15.1-0ubuntu2.10
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides computers vulnerabilities announces. The technology watch team tracks security threats targeting the computer system.