SB2017100615 - Slackware Linux update for xorg-server

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Main Vulnerability Database SB2017100615

SB2017100615 - Slackware Linux update for xorg-server

Published: October 6, 2017 Updated: October 6, 2017

Security Bulletin ID SB2017100615
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Improper Privilege Management (CVE-ID: CVE-2017-13721)

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.


2) Buffer overflow (CVE-ID: CVE-2017-13723)

The vulnerability allows a local authenticated user to execute arbitrary code.

In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.


Remediation

Install update from vendor's website.

References