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SUSE Linux Enterprise Server 9, SUSE Novell Linux Desktop 9, SUSE Open Enterprise Server, SUSE Novell Linux POS 9, openSUSE 10.2, SUSE Linux Enterprise Desktop 10 SP1, SUSE Linux Enterprise Server 10 SP1, openSUSE 10.3, SUSE Linux Enterprise Desktop 10 SP2, SUSE Linux Enterprise Server 10 SP2, SUSE Linux Enterprise 10 SP2 DEBUGINFO |
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______________________________________________________________________________
SUSE Security Announcement
Package: gnutls
Announcement ID: SUSE-SA:2008:046
Date: Wed, 17 Sep 2008 14:00:00 +0000
Affected Products: openSUSE 10.2
openSUSE 10.3
SUSE SLES 9
Novell Linux Desktop 9
Open Enterprise Server
Novell Linux POS 9
SUSE Linux Enterprise Desktop 10 SP1
SUSE Linux Enterprise Server 10 SP1
SUSE Linux Enterprise Desktop 10 SP2
SUSE Linux Enterprise 10 SP2 DEBUGINFO
SUSE Linux Enterprise Server 10 SP2
Vulnerability Type: remote code execution
Severity (1-10): 8
SUSE Default Package: yes
Cross-References: CVE-2008-1948, CVE-2008-1949, CVE-2008-1950
Content of This Advisory:
1) Security Vulnerability Resolved:
gnutls security problems
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
6) Authenticity Verification and Additional Information
______________________________________________________________________________
1) Problem Description and Brief Discussion
Multiple security issues have been fixed in crypto framework gnutls:
CVE-2008-1948 (GNUTLS-SA-2008-1-1): The _gnutls_server_name_recv_params
function in lib/ext_server_name.c in libgnutls in gnutls-serv in
GnuTLS before 2.2.4 does not properly calculate the number of Server
Names in a TLS 1.0 Client Hello message during extension handling,
which allows remote attackers to cause a denial of service (crash)
or possibly execute arbitrary code via a zero value for the length of
Server Names, which leads to a buffer overflow in session resumption
data in the pack_security_parameters function.
CVE-2008-1949 (GNUTLS-SA-2008-1-2): The _gnutls_recv_client_kx_message
function in lib/gnutls_kx.c in libgnutls in gnutls-serv in GnuTLS
before 2.2.4 continues to process Client Hello messages within a TLS
message after one has already been processed, which allows remote
attackers to cause a denial of service (NULL dereference and crash)
via a TLS message containing multiple Client Hello messages,
CVE-2008-1950 (GNUTLS-SA-2008-1-3): Integer signedness error in
the _gnutls_ciphertext2compressed function in lib/gnutls_cipher.c in
libgnutls in GnuTLS before 2.2.4 allows remote attackers to cause a
denial of service (buffer over-read and crash) via a certain integer
value in the Random field in an encrypted Client Hello message within
a TLS record with an invalid Record Length, which leads to an invalid
cipher padding length,
openSUSE 11.0 was already shipped with fixed gnutls packages.
2) Solution or Work-Around
There is no known workaround, please install the update packages.
3) Special Instructions and Notes
Please close and restart all running instances of gnutls after the update.
4) Package Location and Checksums
The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command
rpm -Fhv
to apply the update, replacing with the filename of the
downloaded RPM package.
x86 Platform:
openSUSE 10.3:
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/gnutls-1.6.1-36.2.i586.rpm
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/gnutls-devel-1.6.1-36.2.i586.rpm
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/gnutls-1.4.4-19.i586.rpm
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/gnutls-devel-1.4.4-19.i586.rpm
x86-64 Platform:
openSUSE 10.3:
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/gnutls-32bit-1.6.1-36.2.x86_64.rpm
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/gnutls-devel-32bit-1.6.1-36.2.x86_64.rpm
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/gnutls-32bit-1.4.4-19.x86_64.rpm
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/gnutls-devel-32bit-1.4.4-19.x86_64.rpm
Sources:
openSUSE 10.3:
http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/gnutls-1.6.1-36.2.src.rpm
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/gnutls-1.4.4-19.src.rpm
Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:
SUSE Linux Enterprise Server 10 SP1
http://download.novell.com/index.jsp?search=Search&keywords=16019428f51c348156efc7b17ac3a6b1
SUSE Linux Enterprise Desktop 10 SP1
http://download.novell.com/index.jsp?search=Search&keywords=16019428f51c348156efc7b17ac3a6b1
Open Enterprise Server
http://download.novell.com/index.jsp?search=Search&keywords=566c183b06655fd3c666c5d69f276831
Novell Linux POS 9
http://download.novell.com/index.jsp?search=Search&keywords=566c183b06655fd3c666c5d69f276831
Novell Linux Desktop 9
http://download.novell.com/index.jsp?search=Search&keywords=566c183b06655fd3c666c5d69f276831
SUSE Linux Enterprise Server 10 SP2
http://download.novell.com/index.jsp?search=Search&keywords=566c183b06655fd3c666c5d69f276831
SUSE Linux Enterprise 10 SP2 DEBUGINFO
http://download.novell.com/index.jsp?search=Search&keywords=566c183b06655fd3c666c5d69f276831
SUSE Linux Enterprise Desktop 10 SP2
http://download.novell.com/index.jsp?search=Search&keywords=566c183b06655fd3c666c5d69f276831
SUSE SLES 9
http://download.novell.com/index.jsp?search=Search&keywords=566c183b06655fd3c666c5d69f276831
______________________________________________________________________________
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
______________________________________________________________________________
6) 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 where you saved 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 the 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 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-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
.
=====================================================================
SUSE's security contact is or .
The 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
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key
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