SUSE Security Announcement: gpg (SUSE-SA:2006:075)
Posted on: 12/13/2006 12:45 PM

A security announcement from SUSE

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______________________________________________________________________________

SUSE Security Announcement

Package: gpg,gpg2
Announcement ID: SUSE-SA:2006:075
Date: Wed, 13 Dec 2006 12:00:00 +0000
Affected Products: Novell Linux Desktop 9
Novell Linux POS 9
Open Enterprise Server
openSUSE 10.2
SUSE LINUX 10.1
SUSE LINUX 10.0
SUSE LINUX 9.3
SuSE Linux Desktop 1.0
SuSE Linux Enterprise Server 8
SuSE Linux Openexchange Server 4
SUSE LINUX Retail Solution 8
SuSE Linux School Server
SuSE Linux Standard Server 8
SUSE SLED 10
SUSE SLES 10
SUSE SLES 9
UnitedLinux 1.0
Vulnerability Type: remote code execution
Severity (1-10): 8
SUSE Default Package: yes
Cross-References: CVE-2006-6169, CVE-2006-6235

Content of This Advisory:
1) Security Vulnerability Resolved:
two security problems in GPG
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

Two security problems were fixed in the GNU Privacy Guard (GPG).

- Specially crafted files could overflow a buffer when gpg was used
in interactive mode (CVE-2006-6169).

- Specially crafted files could modify a function pointer and
could potentially execute code this way. (CVE-2006-6235).

Update for all SUSE Linux based products have been released.

2) Solution or Work-Around

There is no known workaround, please install the update packages.

3) Special Instructions and Notes

None.

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 <file.rpm>

to apply the update, replacing <file.rpm> with the filename of the
downloaded RPM package.


x86 Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/gpg-1.4.5-24.2.i586.rpm
0032014cef28fd9d575ca9d56886dc9a
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/gpg2-1.9.22-20.2.i586.rpm
8cdf17f4928497c703df0986012bd924

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/gpg-1.4.2-23.12.i586.rpm
714ad111277495f85fb4d75c07a436e1
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/gpg2-1.9.18-17.13.i586.rpm
df328ffaa0b0fa34e70932dd8eafd399

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/gpg-1.4.2-5.11.i586.rpm
bbdac2ac9cf42f2e0744f93c7a27bd64
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/gpg2-1.9.18-2.11.i586.rpm
6b96bf0aa835b5c5a6d38f3fe9baa020

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/gpg-1.4.0-4.11.i586.rpm
1f188d6e98593753dbf0115758c60700
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/gpg2-1.9.14-6.13.i586.rpm
493bb161ab9a0ee7e8b687da49fc874f

Power PC Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/gpg-1.4.5-24.2.ppc.rpm
8ba71e773c0ed4bfad10017d4f0ad769
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/gpg2-1.9.22-20.2.ppc.rpm
04e4aa189832a2834ac843d3d216b560

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/gpg-1.4.2-23.12.ppc.rpm
87d3e2efab5fda6d0c0fb0228e8089eb
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/gpg2-1.9.18-17.13.ppc.rpm
9ecd1af3d67515388dc5f9c797d33fde

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/gpg-1.4.2-5.11.ppc.rpm
36dd086f17d69a2344387249f4f59828
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/gpg2-1.9.18-2.11.ppc.rpm
0b0a3f42511f722f1113ceb2ddb1fe42

x86-64 Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/gpg-1.4.5-24.2.x86_64.rpm
178ec43c6b057b055e64fd8ce3b370f3
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/gpg2-1.9.22-20.2.x86_64.rpm
a480e34bc72c13902b060774a8c93614

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/gpg-1.4.2-23.12.x86_64.rpm
424104d7e79aa13997a9cd5bf48daaed
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/gpg2-1.9.18-17.13.x86_64.rpm
f9813d58d65585d3216ce4a514288e60

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/gpg-1.4.2-5.11.x86_64.rpm
542621ad20461324061e95d757f062a9
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/gpg2-1.9.18-2.11.x86_64.rpm
6e40568843721500e6e7a01e49478be5

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/gpg-1.4.0-4.11.x86_64.rpm
d0857cd1ef3d71961e866f56c565b32d
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/gpg2-1.9.14-6.13.x86_64.rpm
20eb29a34cd71e5d1fa86bb53522a5ca

Sources:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/gpg-1.4.5-24.2.src.rpm
8b319a4138cc1ff4304dc45c369936c6
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/gpg2-1.9.22-20.2.src.rpm
6ea5c120e635118233a97c5877ca10c0

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/gpg-1.4.2-23.12.src.rpm
551331ff3994d1e0a6a1c893f9d99c84
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/gpg2-1.9.18-17.13.src.rpm
4dcf00273942790ccc8945f1badb441d

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/gpg-1.4.2-5.11.src.rpm
47425c0af8df3d11100bc938db0d9141
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/gpg2-1.9.18-2.11.src.rpm
d76d488c78aa5c047f9d0d3a72bb1509

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/gpg-1.4.0-4.11.src.rpm
86c9afba71507f0d4f3f7e88fa599ea1
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/gpg2-1.9.14-6.13.src.rpm
a911124ed914970d7c458caf03ddd709

Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:

UnitedLinux 1.0
SuSE Linux Openexchange Server 4
Open Enterprise Server
Novell Linux POS 9
SuSE Linux Enterprise Server 8
SuSE Linux Standard Server 8
SuSE Linux School Server
SUSE LINUX Retail Solution 8
SuSE Linux Desktop 1.0
SUSE SLES 9
http://support.novell.com/techcenter/psdb/440643b5b7f99c513f043f911ca9d906.html

Novell Linux Desktop 9
SUSE SLES 10
SUSE SLED 10
http://support.novell.com/techcenter/psdb/440643b5b7f99c513f043f911ca9d906.html
http://support.novell.com/techcenter/psdb/d29d6e06422f5a6d9e87580b666bbb83.html

______________________________________________________________________________

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 <file>

replacing <file> with the name of the file where you saved 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 the integrity of
a package needs to be verified to ensure that it has not been tampered
with.

There are two verification methods that can be used independently from
each other to prove the authenticity of a downloaded file or RPM package:

1) Using the internal gpg signatures of the rpm package
2) MD5 checksums as provided in this announcement

1) 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 at
the end of this announcement.

2) If you need an alternative means of verification, use the md5sum
command to verify the authenticity of the packages. Execute the command

md5sum <filename.rpm>

after you downloaded the file from a SUSE FTP server or its mirrors.
Then compare the resulting md5sum with the one that is listed in the
SUSE security announcement. Because the announcement containing the
checksums is cryptographically signed (by security@suse.de), the
checksums show proof of the authenticity of the package if the
signature of the announcement is valid. Note that the md5 sums
published in the SUSE Security Announcements are valid for the
respective packages only. Newer versions of these packages cannot be
verified.

- 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>.

suse-security-announce@suse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
<suse-security-announce-subscribe@suse.com>.

=====================================================================
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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