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Security Advisory Moderate: gnome-screensaver security update

Advisory: RHSA-2008:0197-3
Type: Security Advisory
Severity: Moderate
Issued on: 2008-04-02
Last updated on: 2008-04-02
Affected Products: Red Hat Enterprise Linux (v. 5 server)
Red Hat Enterprise Linux Desktop (v. 5 client)
Red Hat Enterprise Linux EUS (v. 5.1.z server)
CVEs (cve.mitre.org): CVE-2008-0887

Details

An updated gnome-screensaver package that fixes a security flaw is now
available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

gnome-screensaver is the GNOME project's official screen saver program.

A flaw was found in the way gnome-screensaver verified user passwords. When
a system used a remote directory service for login credentials, a local
attacker able to cause a network outage could cause gnome-screensaver to
crash, unlocking the screen. (CVE-2008-0887)

Users of gnome-screensaver should upgrade to this updated package, which
contains a backported patch to correct this issue.


Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Updated packages

Red Hat Enterprise Linux (v. 5 server)

SRPMS:
gnome-screensaver-2.16.1-5.el5_1.1.src.rpm
File outdated by:  RHBA-2012:0008
    MD5: aab7f91dd66f46348adfa0c91e882214
 
IA-32:
gnome-screensaver-2.16.1-5.el5_1.1.i386.rpm
File outdated by:  RHBA-2012:0008
    MD5: e7771ffe814ec1692db8842c0c0af199
 
IA-64:
gnome-screensaver-2.16.1-5.el5_1.1.ia64.rpm
File outdated by:  RHBA-2012:0008
    MD5: a44d5b7e9ea18f0bfb0075dfc40fdf58
 
PPC:
gnome-screensaver-2.16.1-5.el5_1.1.ppc.rpm
File outdated by:  RHBA-2012:0008
    MD5: 23b8308c702c0739500858983daef057
 
s390x:
gnome-screensaver-2.16.1-5.el5_1.1.s390x.rpm
File outdated by:  RHBA-2012:0008
    MD5: c203965aec8780480a87216836f968ea
 
x86_64:
gnome-screensaver-2.16.1-5.el5_1.1.x86_64.rpm
File outdated by:  RHBA-2012:0008
    MD5: 5d876564ed80778271732cc06199c676
 
Red Hat Enterprise Linux Desktop (v. 5 client)

SRPMS:
gnome-screensaver-2.16.1-5.el5_1.1.src.rpm
File outdated by:  RHBA-2012:0008
    MD5: aab7f91dd66f46348adfa0c91e882214
 
IA-32:
gnome-screensaver-2.16.1-5.el5_1.1.i386.rpm
File outdated by:  RHBA-2012:0008
    MD5: e7771ffe814ec1692db8842c0c0af199
 
x86_64:
gnome-screensaver-2.16.1-5.el5_1.1.x86_64.rpm
File outdated by:  RHBA-2012:0008
    MD5: 5d876564ed80778271732cc06199c676
 
Red Hat Enterprise Linux EUS (v. 5.1.z server)

SRPMS:
gnome-screensaver-2.16.1-5.el5_1.1.src.rpm
File outdated by:  RHBA-2012:0008
    MD5: aab7f91dd66f46348adfa0c91e882214
 
IA-32:
gnome-screensaver-2.16.1-5.el5_1.1.i386.rpm     MD5: e7771ffe814ec1692db8842c0c0af199
 
IA-64:
gnome-screensaver-2.16.1-5.el5_1.1.ia64.rpm     MD5: a44d5b7e9ea18f0bfb0075dfc40fdf58
 
PPC:
gnome-screensaver-2.16.1-5.el5_1.1.ppc.rpm     MD5: 23b8308c702c0739500858983daef057
 
s390x:
gnome-screensaver-2.16.1-5.el5_1.1.s390x.rpm     MD5: c203965aec8780480a87216836f968ea
 
x86_64:
gnome-screensaver-2.16.1-5.el5_1.1.x86_64.rpm     MD5: 5d876564ed80778271732cc06199c676
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

435773 - CVE-2008-0887 gnome-screensaver using NIS auth will unlock if NIS goes away


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/