SUSE published SUSE Security Summary Report: SUSE-SR:2011:010

SUSE Security Summary Report

Announcement ID: SUSE-SR:2011:010
Date: Tue, 31 May 2011 08:00:00 +0000
Cross-References: CVE-2009-5024, CVE-2011-0411, CVE-2011-1098
CVE-2011-1154, CVE-2011-1155, CVE-2011-1168
CVE-2011-1407, CVE-2011-1521, CVE-2011-1575
CVE-2011-1588, CVE-2011-1595, CVE-2011-1720
CVE-2011-1750, CVE-2011-1751, CVE-2011-1929

Content of this advisory:
1) Solved Security Vulnerabilities:
- postfix
- libthunarx-2-0
- rdesktop
- python
- viewvc
- kvm
- exim
- logrotate
- dovecot12/dovecot20
- pure-ftpd
- kdelibs4
2) Pending Vulnerabilities, Solutions, and Work-Arounds:
none
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 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.

- postfix
Remote attackers could potentially exploit a memory corruption issue
in postfix' SASL implementation to execute arbitrary code
CVE-2011-0411: CVSS v2 Base Score: 4.0 (AV:N/AC:H/Au:N/C:P/I:P/A:N)
postfix did not clear the receive buffer after the STARTTLS command. A
man-in-the middle could therefore inject comma nds in the
unencrypted stream that get interpreted in the encrypted phase after
STARTTLS.
CVE-2011-1720: CVSS v2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
Affected Products: SLES9, SLE10-SP2, SLE10-SP3, SLE10-SP4, SLE11-SP1,
openSUSE 11.2, 11.3, 11.4

- libthunarx-2-0
Due to a format string error thunar could crash when copy&pasting a file
name with format characters.
CVE-2011-1588: CVSS v2 Base Score: 6.8 (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Affected Products: openSUSE 11.4

- rdesktop
A malicious server could access any file on clients connecting to it if
the client shared some ressource (CVE-2011-1595).
CVE-2011-1595: CVSS v2 Base Score: 4.3 (AV:A/AC:H/Au:N/C:P/I:P/A:P)
Affected Products: SLE10-SP4, SLE11-SP1, openSUSE 11.3, 11.4

- python
This update of python fixes a possible denial of service bug or
information leakage vulnerability while using user-crafted ftp://
or file:// URLs with urllib(2).
CVE-2011-1521: CVSS v2 Base Score: 6.4 (AV:N/AC:L/Au:N/C:P/I:N/A:P)
Affected Products: SLE10-SP3, SLE10-SP4, SLE11-SP1

- viewvc
cvsdb.py in viewvc did not honor an admin defined row limit which
could cause high load on the database server. Viewvc was updated to
version 1.1.11 which fixes the issue.
CVE-2009-5024: CVSS v2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
Affected Products: openSUSE 11.3, 11.4

- kvm
By causing a hot-unplug of the pci-isa bridge from within guests the
qemu process could access already freed memory. A privileged
user inside the guest could exploit that to crash the guest instance
or potentially execute arbitrary code on the host.
CVE-2011-1751: CVSS v2 Base Score: 7.4 (AV:A/AC:M/Au:S/C:C/I:C/A:C)
The virtio-blk driver did not properly validate read and write
request. A privileged user inside the guest could exploit that to
cause a heap corruption and crash the guest instance or potentially
execute arbitrary code on the host.
CVE-2011-1750: CVSS v2 Base Score: 7.4 (AV:A/AC:M/Au:S/C:C/I:C/A:C)
Affected Products: SLE11-SP1, openSUSE 11.3, 11.4

- exim
This update fixes a security issues:
+ exim remote code exection
CVE-2011-1407: CVSS v2 Base Score: 6.8 (AV:N/AC:M/Au:N/C:P/I:P/A:P)
+ also some safety improvements regarding STARTTLS.
Affected Products: openSUSE 11.3, 11.4

- dovecot12/dovecot20
Dovecot crash when parsing mail headers that contain NUL characters.
CVE-2011-1929: CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Affected Products: openSUSE 11.3, 11.4

- logrotate
This update for logrotate provides the following fixes:
+ Race condition in the createOutputFile function in logrotate allows
local users to read log data by opening a file before the intended
permissions are in place.
CVE-2011-1098: CVSS v2 Base Score: 1.9 (AV:L/AC:M/Au:N/C:P/I:N/A:N)
+ The writeState function in logrotate might allow context-dependent
attackers to cause a denial of service (rotation outage) via a
(1) \n (newline) or (2) \ (backslash) character in a log filename, as
demonstrated by a filename that is automatically constructed on the
basis of a hostname or virtual machine name.
CVE-2011-1155: CVSS v2 Base Score: 1.9 (AV:L/AC:M/Au:N/C:N/I:N/A:P)
+ In addition, the missingok option has been improved
Affected Products: SLE10-SP3, SLE10-SP4, SLE11-SP1, openSUSE 11.3, 11.4

- pure-ftpd
Pure-ftpd is vulnerable to the STARTTLS command injection issue similar
to CVE-2011-0411 of postfix.
CVE-2011-1575: CVSS v2 Base Score: 4.0 (AV:N/AC:H/Au:N/C:P/I:P/A:N)
Affected Products: SLE10-SP3, SLE10-SP4, SLE11-SP1, openSUSE 11.2,
11.3, 11.4

- kdelibs4
A XSS vulnerability in the way KHTML handles error pages has been
fixed.
CVE-2011-1168: CVSS v2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Affected Products: SLE11-SP1, openSUSE 11.2, 11.3, 11.4

______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

none
______________________________________________________________________________

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

replacing with the name of the file containing the announcement.
The output for a valid signature looks like:

gpg: Signature made using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team "

where 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

to verify the signature of the package, replacing 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.

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