Oracle Linux 6 : gdm (ELSA-2011-0395)

Medium Nessus Plugin ID 68241


The remote Oracle Linux host is missing one or more security updates.


From Red Hat Security Advisory 2011:0395 :

Updated gdm packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The GNOME Display Manager (GDM) provides the graphical login screen, shown shortly after boot up, log out, and when user-switching.

A race condition flaw was found in the way GDM handled the cache directories used to store users' dmrc and face icon files. A local attacker could use this flaw to trick GDM into changing the ownership of an arbitrary file via a symbolic link attack, allowing them to escalate their privileges. (CVE-2011-0727)

Red Hat would like to thank Sebastian Krahmer of the SuSE Security Team for reporting this issue.

All users should upgrade to these updated packages, which contain a backported patch to correct this issue. GDM must be restarted for this update to take effect. Rebooting achieves this, but changing the runlevel from 5 to 3 and back to 5 also restarts GDM.


Update the affected gdm packages.

See Also

Plugin Details

Severity: Medium

ID: 68241

File Name: oraclelinux_ELSA-2011-0395.nasl

Version: $Revision: 1.4 $

Type: local

Agent: unix

Published: 2013/07/12

Modified: 2015/12/01

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.9

Temporal Score: 6

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:gdm, p-cpe:/a:oracle:linux:gdm-libs, p-cpe:/a:oracle:linux:gdm-plugin-fingerprint, p-cpe:/a:oracle:linux:gdm-plugin-smartcard, p-cpe:/a:oracle:linux:gdm-user-switch-applet, cpe:/o:oracle:linux:6

Required KB Items: Host/local_checks_enabled, Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/03/29

Reference Information

CVE: CVE-2011-0727

BID: 47063

OSVDB: 72551

RHSA: 2011:0395