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______________________________________________________________________________
SUSE Security Summary Report
Announcement ID: SUSE-SR:2007:019
Date: Fri, 28 Sep 2007 09:00:00 +0000
Cross-References: CVE-2001-1267, CVE-2002-0399, CVE-2007-4476,
CVE-2007-2833, CVE-2007-4743, CVE-2007-0244,
CVE-2007-3782, CVE-2007-4137, CVE-2007-5007,
CVE-2007-4460
Content of this advisory:
1) Solved Security Vulnerabilities:
- star
- cpio
- emacs
- krb5
- pptpd
- mysql
- qt3
- balsa
- id3lib
2) Pending Vulnerabilities, Solutions, and Work-Arounds:
- kernel x86_64: local privilege escalation (CVE-2007-4573)
3) Authenticity Verification and Additional Information
______________________________________________________________________________
1) Solved Security Vulnerabilities
To avoid flooding mailing lists with SUSE Security Announcements for minor
issues, SUSE Security releases weekly summary reports for the low profile
vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums
or download URLs like the SUSE Security Announcements that are released for
more severe vulnerabilities.
Fixed packages for the following incidents are already available on our FTP
server and via the YaST Online Update.
- star
This update fixes a directory traversal bug. (CVE-2001-1267,CVE-2002-0399)
- cpio
This update fixes a bug in cpio in function safer_name_suffix() which
leads to a crashing stack. Exploitability is unknown. (CVE-2007-4476)
- emacs
This update fixes a bug in parsing GIF images that lead to a crash of
emacs. (CVE-2007-2833)
- krb5
This update improves the patch for the previously released security
update of krb5 to fix CVE-2007-3999 and CVE-2007-4000. (CVE-2007-4743)
- pptpd
This update fixes a bug found by regression tests. The error appears
in code processing out-of-order sequence numbers of some MPPE implemen-
tations. (CVE-2007-0244)
This only affects openSUSE 10.2.
- mysql
This update provides fixes for a remote crash (CVE-2007-3780), a bug
that allows to query tables without proper authorization (CVE-2007-
3781) and the possibility gain update privileges without popper autho-
rization (CVE-2007-3782)
- qt3
This update fixes a buffer overflow in qt3 while handling UTF8 char-
acters. (CVE-2007-4137)
Exploitability is unknown. Please restart your GUI application after
the update to reload shared libraries.
- balsa
This update of balsa (a GNOME mail program) fixes a buffer overflow
that can occur while reading data from an IMAP server. (CVE-2007-5007)
This bug can be exploited to execute arbitrary code with the privileges
of the user balsa runs with.
This package does not exists on enterprise products.
- id3lib
This update improves the handling of temporary files. (CVE-2007-4460)
Local users can abuse it to overwrite files with the privileges of other
users.
______________________________________________________________________________
2) Pending Vulnerabilities, Solutions, and Work-Arounds
There are several dozens updates in the queue that only have a minor or
medium severity. Therefore only the most important ones will be listed
in detail here.
- kernel x86_64 - CVE-2007-4573
The Linux kernel for the x86_64 architecture is vulnerable to a local
privilege escalation. Exploits for this bug are available and can be used
by local users to gain root privileges.
There is no work-around known other then disabling the login of untrusted
users or adding the patch (http://lkml.org/lkml/2007/9/21/513) from up-
stream on your own.
New and tested kernel packages from SUSE will be available at the begin-
ning of week number 41 earliest.
The "kernel-of-the-day" snapshot which is available from
ftp.suse.com/
pub/projects/kernel/kotd/ will also include the fix as soon as it was
applied to the branches. Check the change-log of the RPM file to verify.
NOTE: We can not provide support for a kernel not patched by us and for
the kernel-of-the-day!
______________________________________________________________________________
3) Authenticity Verification and Additional Information
- Announcement authenticity verification:
SUSE security announcements are published via mailing lists and on Web
sites. The authenticity and integrity of a SUSE security announcement is
guaranteed by a cryptographic signature in each announcement. All SUSE
security announcements are published with a valid signature.
To verify the signature of the announcement, save it as text into a file
and run the command
gpg --verify <file>
replacing <file> with the name of the file containing the
announcement.
The output for a valid signature looks like:
gpg: Signature made <DATE> using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team
<security@suse.de>"
where <DATE> is replaced by the date the document was signed.
If the security team's key is not contained in your key ring, you can
import it from the first installation CD. To import the key, use the
command
gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc
- Package authenticity verification:
SUSE update packages are available on many mirror FTP servers all over the
world. While this service is considered valuable and important to the free
and open source software community, the authenticity and integrity of a
package needs to be verified to ensure that it has not been tampered with.
The internal RPM package signatures provide an easy way to verify the
authenticity of an RPM package. Use the command
rpm -v --checksig <file.rpm>
to verify the signature of the package, replacing <file.rpm> with the
filename of the RPM package downloaded. The package is unmodified if it
contains a valid signature from build@suse.de with the key ID 9C800ACA.
This key is automatically imported into the RPM database (on RPMv4-based
distributions) and the gpg key ring of 'root' during installation.
You can
also find it on the first installation CD and included at the end of this
announcement.
- SUSE runs two security mailing lists to which any interested party may
subscribe:
opensuse-security@opensuse.org
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
<opensuse-security+subscribe@opensuse.org>.
opensuse-security-announce@opensuse.org
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
<opensuse-security-announce+subscribe@opensuse.org>.
=====================================================================
SUSE's security contact is <security@suse.com> or
<security@suse.de>.
The <security@suse.de> public key is listed below.
=====================================================================
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular, the
clear text signature should show proof of the authenticity of the text.
SUSE Linux Products GmbH provides no warranties of any kind whatsoever
with respect to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security@suse.de>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>
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