Executive Summary
Summary | |
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Title | gdm security update |
Informations | |||
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Name | RHSA-2011:0395 | First vendor Publication | 2011-03-28 |
Vendor | RedHat | Last vendor Modification | 2011-03-28 |
Severity (Vendor) | Moderate | Revision | 01 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:L/AC:M/Au:N/C:C/I:C/A:C) | |||
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Cvss Base Score | 6.9 | Attack Range | Local |
Cvss Impact Score | 10 | Attack Complexity | Medium |
Cvss Expoit Score | 3.4 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Problem Description: 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: 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. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 688323 - CVE-2011-0727 gdm: privilege escalation vulnerability |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2011-0395.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-59 | Improper Link Resolution Before File Access ('Link Following') |
OVAL Definitions
Definition Id: oval:org.mitre.oval:def:12826 | |||
Oval ID: | oval:org.mitre.oval:def:12826 | ||
Title: | DSA-2205-1 gdm3 -- privilege escalation | ||
Description: | Sebastian Krahmer discovered that the gdm3, the GNOME Desktop Manager, does not properly drop privileges when manipulating files related to the logged-in user. As a result, local users can gain root privileges. The oldstable distribution does not contain a gdm3 package. The gdm package is not affected by this issue. | ||
Family: | unix | Class: | patch |
Reference(s): | DSA-2205-1 CVE-2011-0727 | Version: | 5 |
Platform(s): | Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | gdm3 |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:13786 | |||
Oval ID: | oval:org.mitre.oval:def:13786 | ||
Title: | USN-1099-1 -- gdm vulnerability | ||
Description: | Sebastian Krahmer discovered that GDM did not properly drop privileges when handling the cache directories used to store users" dmrc and face icon files. This could allow a local attacker to change the ownership of arbitrary files, thereby gaining root privileges. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-1099-1 CVE-2011-0727 | Version: | 5 |
Platform(s): | Ubuntu 10.10 Ubuntu 9.10 Ubuntu 10.04 | Product(s): | gdm |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:21930 | |||
Oval ID: | oval:org.mitre.oval:def:21930 | ||
Title: | RHSA-2011:0395: gdm security update (Moderate) | ||
Description: | GNOME Display Manager (gdm) 2.x before 2.32.1 allows local users to change the ownership of arbitrary files via a symlink attack on a (1) dmrc or (2) face icon file under /var/cache/gdm/. | ||
Family: | unix | Class: | patch |
Reference(s): | RHSA-2011:0395-01 CVE-2011-0727 | Version: | 4 |
Platform(s): | Red Hat Enterprise Linux 6 | Product(s): | gdm |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:23685 | |||
Oval ID: | oval:org.mitre.oval:def:23685 | ||
Title: | ELSA-2011:0395: gdm security update (Moderate) | ||
Description: | GNOME Display Manager (gdm) 2.x before 2.32.1 allows local users to change the ownership of arbitrary files via a symlink attack on a (1) dmrc or (2) face icon file under /var/cache/gdm/. | ||
Family: | unix | Class: | patch |
Reference(s): | ELSA-2011:0395-01 CVE-2011-0727 | Version: | 6 |
Platform(s): | Oracle Linux 6 | Product(s): | gdm |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:27397 | |||
Oval ID: | oval:org.mitre.oval:def:27397 | ||
Title: | DEPRECATED: ELSA-2011-0395 -- gdm security update (moderate) | ||
Description: | [2.30.4-21.0.2.el6_0.1] - Added oracle-enterprise.patch to show oracle-release contents. [2.30.4-21.1] - Fix CVE-2011-0727 | ||
Family: | unix | Class: | patch |
Reference(s): | ELSA-2011-0395 CVE-2011-0727 | Version: | 4 |
Platform(s): | Oracle Linux 6 | Product(s): | gdm |
Definition Synopsis: | |||
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CPE : Common Platform Enumeration
OpenVAS Exploits
Date | Description |
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2012-06-06 | Name : RedHat Update for gdm RHSA-2011:0395-01 File : nvt/gb_RHSA-2011_0395-01_gdm.nasl |
2011-05-12 | Name : Debian Security Advisory DSA 2205-1 (gdm3) File : nvt/deb_2205_1.nasl |
2011-05-12 | Name : FreeBSD Ports: gdm File : nvt/freebsd_gdm.nasl |
2011-04-19 | Name : Fedora Update for gdm FEDORA-2011-4351 File : nvt/gb_fedora_2011_4351_gdm_fc13.nasl |
2011-04-11 | Name : Mandriva Update for gdm MDVSA-2011:070 (gdm) File : nvt/gb_mandriva_MDVSA_2011_070.nasl |
2011-04-06 | Name : Fedora Update for gdm FEDORA-2011-4335 File : nvt/gb_fedora_2011_4335_gdm_fc14.nasl |
2011-04-01 | Name : Ubuntu Update for gdm vulnerability USN-1099-1 File : nvt/gb_ubuntu_USN_1099_1.nasl |
Open Source Vulnerability Database (OSVDB)
Id | Description |
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72551 | GNOME Display Manager (gdm) /var/cache/gdm/ Multiple File Symlink Local Privi... |
Nessus® Vulnerability Scanner
Date | Description |
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2014-12-15 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201412-09.nasl - Type : ACT_GATHER_INFO |
2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_3_gdm-110330.nasl - Type : ACT_GATHER_INFO |
2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_4_gdm-110330.nasl - Type : ACT_GATHER_INFO |
2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2011-0395.nasl - Type : ACT_GATHER_INFO |
2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20110329_gdm_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
2011-04-15 | Name : The remote Fedora host is missing a security update. File : fedora_2011-4351.nasl - Type : ACT_GATHER_INFO |
2011-04-11 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2011-070.nasl - Type : ACT_GATHER_INFO |
2011-04-04 | Name : The remote Fedora host is missing a security update. File : fedora_2011-4335.nasl - Type : ACT_GATHER_INFO |
2011-03-31 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-1099-1.nasl - Type : ACT_GATHER_INFO |
2011-03-30 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_c6fbd44759ed11e08d040015f2db7bde.nasl - Type : ACT_GATHER_INFO |
2011-03-29 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2205.nasl - Type : ACT_GATHER_INFO |
2011-03-29 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2011-0395.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2014-02-17 11:54:32 |
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