A new update is available for Red Hat Enterprise Linux. Here the announcement:
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Red Hat Security Advisory
Synopsis: Low: gdm security and bug fix update
Advisory ID: RHSA-2007:0286-02
Advisory URL: https://rhn.redhat.com/errata/RHSA-2007-0286.html
Issue date: 2007-05-01
Updated on: 2007-05-01
Product: Red Hat Enterprise Linux
Keywords: .Xauthority race condition
CVE Names: CVE-2006-1057
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1. Summary:
An updated gdm package that fixes a security issue and a bug is now available.
This update has been rated as having low security impact by the Red Hat
Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
3. Problem description:
Gdm (the GNOME Display Manager) is a highly configurable reimplementation
of xdm, the X Display Manager. Gdm allows you to log into your system with
the X Window System running and supports running several different X
sessions on your local machine at the same time.
Marcus Meissner discovered a race condition issue in the way Gdm modifies
the permissions on the .ICEauthority file. A local attacker could exploit
this flaw to gain privileges. Due to the nature of the flaw, however, a
successful exploitation was unlikely. (CVE-2006-1057)
This erratum also includes a bug fix to correct the pam configuration for
the audit system.
All users of gdm should upgrade to this updated package, which contains
backported patches to resolve these issues.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:
up2date
For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:
http://www.redhat.com/docs/manuals/enterprise/
5. Bug IDs fixed (http://bugzilla.redhat.com/):
159338 - gdm update for new audit system
188302 - CVE-2006-1057 GDM file permissions race condition
6. RPMs required:
Red Hat Enterprise Linux AS version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/gdm-2.6.0.5-7.rhel4.15.src.rpm
7c6a9e6faabcc3ee235e39ffbc302c1d gdm-2.6.0.5-7.rhel4.15.src.rpm
i386:
298d605e4ba10fb68a49aba0699d84a7 gdm-2.6.0.5-7.rhel4.15.i386.rpm
e346d2491ec0a37c6644f69b9af60711 gdm-debuginfo-2.6.0.5-7.rhel4.15.i386.rpm
ia64:
5bc9d3a15228d06ce0e2e746672af19a gdm-2.6.0.5-7.rhel4.15.ia64.rpm
daeea7f1287b3563c01f31e5a26c4853 gdm-debuginfo-2.6.0.5-7.rhel4.15.ia64.rpm
ppc:
118eba1dd505514b44ee2864d6ef53b2 gdm-2.6.0.5-7.rhel4.15.ppc.rpm
7f457dc913f59edffa1d67410dbb9664 gdm-debuginfo-2.6.0.5-7.rhel4.15.ppc.rpm
s390:
1bbe16709e32eaf9a5cdadb4aa3cd0df gdm-2.6.0.5-7.rhel4.15.s390.rpm
48aa9fc93f744458e0cb7ee92b67fd91 gdm-debuginfo-2.6.0.5-7.rhel4.15.s390.rpm
s390x:
7707a11959a00214932cf41e6c31e1d9 gdm-2.6.0.5-7.rhel4.15.s390x.rpm
27bcb099c402711332b6a2ad9932276e gdm-debuginfo-2.6.0.5-7.rhel4.15.s390x.rpm
x86_64:
56b3f1b0741daa26cca66326086765b3 gdm-2.6.0.5-7.rhel4.15.x86_64.rpm
ec14fee9396e0c36fc62a23a7a1e4db5 gdm-debuginfo-2.6.0.5-7.rhel4.15.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/gdm-2.6.0.5-7.rhel4.15.src.rpm
7c6a9e6faabcc3ee235e39ffbc302c1d gdm-2.6.0.5-7.rhel4.15.src.rpm
i386:
298d605e4ba10fb68a49aba0699d84a7 gdm-2.6.0.5-7.rhel4.15.i386.rpm
e346d2491ec0a37c6644f69b9af60711 gdm-debuginfo-2.6.0.5-7.rhel4.15.i386.rpm
x86_64:
56b3f1b0741daa26cca66326086765b3 gdm-2.6.0.5-7.rhel4.15.x86_64.rpm
ec14fee9396e0c36fc62a23a7a1e4db5 gdm-debuginfo-2.6.0.5-7.rhel4.15.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/gdm-2.6.0.5-7.rhel4.15.src.rpm
7c6a9e6faabcc3ee235e39ffbc302c1d gdm-2.6.0.5-7.rhel4.15.src.rpm
i386:
298d605e4ba10fb68a49aba0699d84a7 gdm-2.6.0.5-7.rhel4.15.i386.rpm
e346d2491ec0a37c6644f69b9af60711 gdm-debuginfo-2.6.0.5-7.rhel4.15.i386.rpm
ia64:
5bc9d3a15228d06ce0e2e746672af19a gdm-2.6.0.5-7.rhel4.15.ia64.rpm
daeea7f1287b3563c01f31e5a26c4853 gdm-debuginfo-2.6.0.5-7.rhel4.15.ia64.rpm
x86_64:
56b3f1b0741daa26cca66326086765b3 gdm-2.6.0.5-7.rhel4.15.x86_64.rpm
ec14fee9396e0c36fc62a23a7a1e4db5 gdm-debuginfo-2.6.0.5-7.rhel4.15.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/gdm-2.6.0.5-7.rhel4.15.src.rpm
7c6a9e6faabcc3ee235e39ffbc302c1d gdm-2.6.0.5-7.rhel4.15.src.rpm
i386:
298d605e4ba10fb68a49aba0699d84a7 gdm-2.6.0.5-7.rhel4.15.i386.rpm
e346d2491ec0a37c6644f69b9af60711 gdm-debuginfo-2.6.0.5-7.rhel4.15.i386.rpm
ia64:
5bc9d3a15228d06ce0e2e746672af19a gdm-2.6.0.5-7.rhel4.15.ia64.rpm
daeea7f1287b3563c01f31e5a26c4853 gdm-debuginfo-2.6.0.5-7.rhel4.15.ia64.rpm
x86_64:
56b3f1b0741daa26cca66326086765b3 gdm-2.6.0.5-7.rhel4.15.x86_64.rpm
ec14fee9396e0c36fc62a23a7a1e4db5 gdm-debuginfo-2.6.0.5-7.rhel4.15.x86_64.rpm
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
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1057
http://www.redhat.com/security/updates/classification/#low
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2007 Red Hat, Inc.
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