SB2011120204 - SUSE Linux update for xorg-x11-server

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Main Vulnerability Database SB2011120204

SB2011120204 - SUSE Linux update for xorg-x11-server

Published: December 2, 2011

Security Bulletin ID SB2011120204
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Link following (CVE-ID: CVE-2011-4028)

The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.


2) Race condition (CVE-ID: CVE-2011-4029)

The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arbitrary files to 444, read those files, and possibly cause a denial of service (removed execution permission) via a symlink attack on a temporary lock file.


Remediation

Install update from vendor's website.

References