ALAS-2012-104

Amazon Linux 1 Security Advisory: ALAS-2012-104
Advisory Release Date: 2012-07-05 16:24 Pacific
Advisory Updated Date: 2014-09-14 16:44 Pacific
Severity: Low
Issue Overview:

A flaw was found in the way the X.Org server handled lock files. A local user with access to the system console could use this flaw to determine the existence of a file in a directory not accessible to the user, via a symbolic link attack. (CVE-2011-4028)

A race condition was found in the way the X.Org server managed temporary lock files. A local attacker could use this flaw to perform a symbolic link attack, allowing them to make an arbitrary file world readable, leading to the disclosure of sensitive information. (CVE-2011-4029)


Affected Packages:

xorg-x11-server


Issue Correction:
Run yum update xorg-x11-server to update your system.

New Packages:
i686:
    xorg-x11-server-common-1.10.6-1.12.amzn1.i686
    xorg-x11-server-Xvfb-1.10.6-1.12.amzn1.i686
    xorg-x11-server-Xephyr-1.10.6-1.12.amzn1.i686
    xorg-x11-server-Xnest-1.10.6-1.12.amzn1.i686
    xorg-x11-server-debuginfo-1.10.6-1.12.amzn1.i686

noarch:
    xorg-x11-server-source-1.10.6-1.12.amzn1.noarch

src:
    xorg-x11-server-1.10.6-1.12.amzn1.src

x86_64:
    xorg-x11-server-debuginfo-1.10.6-1.12.amzn1.x86_64
    xorg-x11-server-Xephyr-1.10.6-1.12.amzn1.x86_64
    xorg-x11-server-Xnest-1.10.6-1.12.amzn1.x86_64
    xorg-x11-server-Xvfb-1.10.6-1.12.amzn1.x86_64
    xorg-x11-server-common-1.10.6-1.12.amzn1.x86_64

Additional References

Red Hat: CVE-2011-4028, CVE-2011-4029

Mitre: CVE-2011-4028, CVE-2011-4029