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Sicherheit: Ausführen beliebiger Kommandos in opera
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in opera
ID: SUSE-SA:2007:050
Distribution: SUSE
Plattformen: SUSE Linux 10.0, SUSE LINUX 10.1, SUSE openSUSE 10.2
Datum: Do, 30. August 2007, 13:58
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4367

Originalnachricht


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

______________________________________________________________________________

SUSE Security Announcement

Package: opera
Announcement ID: SUSE-SA:2007:050
Date: Thu, 30 Aug 2007 12:00:00 +0000
Affected Products: SUSE LINUX 10.0
SUSE LINUX 10.1
openSUSE 10.2
Vulnerability Type: remote code execution
Severity (1-10): 8
SUSE Default Package: no
Cross-References: CVE-2007-4367

Content of This Advisory:
1) Security Vulnerability Resolved:
Update for remotely exploitable command execution bug
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
none
6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

The Opera web-browser allows an attacker to execute arbitrary code by
providing an invalid pointer to a virtual function in JavaScript.
This bug can be exploited automatically when a user visits a web-site that
contains the attacker's JavaScript code.

2) Solution or Work-Around

Disable JavaScript in your preferences or use another web-browser.
Opera comes with JavaScript enabled by default.

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/opera-9.23-3.2.i586.rpm
a52dc1ca6f2416378abb61fe91847439

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/opera-9.23-2.2.i586.rpm
26474a0300361157100fe011676580ad

SUSE LINUX 10.0:
opera-9.23-1.2.i586.rpm
eea8c81bf7cb7cc79367a25e571eaa00

Power PC Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/opera-9.23-3.2.ppc.rpm
7a7f748f72b91b26d5666c5c3f82beb5

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/opera-9.23-2.2.ppc.rpm
2dc169be0dbcba07734004d597738199

x86-64 Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/opera-9.23-3.2.x86_64.rpm
5084cbafecac36eb46fe58427b021f76

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/opera-9.23-2.2.x86_64.rpm
5bb56641ede4dd45ce1843bd9ad9353a

SUSE LINUX 10.0:
opera-9.23-1.2.x86_64.rpm
a10907dccb247408bf2a8ed078dff092

Sources:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/opera-9.23-3.2.nosrc.rpm
0232cf47a40c9059ab66ff3b00bc6301

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/opera-9.23-2.2.nosrc.rpm
f7a2617287059e29e9a119f7809b537e

SUSE LINUX 10.0:
opera-9.23-1.2.nosrc.rpm
106d63b92625c62981e16ef8360f3656

______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

none
______________________________________________________________________________

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>.

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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