Kod programskog paketa BIND uočen je nov sigurnosni propust koji zlonamjernim korisnicima omogućuje pokretanje napada uskraćivanja usluge.
| Paket: | BIND 9.7.x |
| Operacijski sustavi: | openSUSE 11.3, openSUSE 11.4, SUSE 10, SUSE 11, SUSE Linux Enterprise Server (SLES) 10, SUSE Linux Enterprise Server (SLES) 11 |
| Kritičnost: | 3.7 |
| Problem: | neodgovarajuća provjera ulaznih podataka, pogreška u programskoj komponenti |
| Iskorištavanje: | udaljeno |
| Posljedica: | uskraćivanje usluga (DoS) |
| Rješenje: | programska zakrpa proizvođača |
| CVE: | CVE-2011-2464 |
| Izvorni ID preporuke: | SUSE-SA:2011:029 |
| Izvor: | SUSE |
| Problem: | |
| Radi se o propustu koji se javlja zbog nepravilne obrade posebno oblikovanih paketa u komunikaiji s DNS (eng. Domain Name System) poslužiteljem. |
|
| Posljedica: | |
| Udaljeni napadači mogu iskoristiti taj propust za pokretanje DoS napada. |
|
| Rješenje: | |
| Svim se korisnicima savjetuje primjena objavljenih rješenja koja uočen propust uklanjaju. |
|
Izvorni tekst preporuke
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
______________________________________________________________________________
SUSE Security Announcement
Package: bind
Announcement ID: SUSE-SA:2011:029
Date: Fri, 08 Jul 2011 16:00:00 +0000
Affected Products: openSUSE 11.3
openSUSE 11.4
SUSE Linux Enterprise Software Development Kit
11 SP1
SUSE Linux Enterprise Desktop 11 SP1
SUSE Linux Enterprise Server 11 SP1
SUSE Linux Enterprise Desktop 10 SP4
SLE SDK 10 SP4
SUSE Linux Enterprise Server 10 SP4
Vulnerability Type: remote denial of service
CVSS v2 Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)
SUSE Default Package: yes
Cross-References: CVE-2011-2464, CVE-2011-2465
Content of This Advisory:
1) Security Vulnerability Resolved:
bind remote denial of service issue
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
A remote Denial of Service vulnerability has been fixed in the BIND
DNS nameserver.
Specially crafted packets could cause bind servers (recursive as well
as authoritative) to exit. (CVE-2011-2464)
This issue affected bind 9.6 and later, so SUSE Linux Enterprise
10 SP4, SUSE Linux Enterprise 11 SP1 and openSUSE 11.3 and 11.4
were affected.
Older service packs / products are not affected by CVE-2011-2464.
Please also note that the other currently published security issue,
CVE-2011-2465, affected only BIND versions 9.8.0 and later, which none
of our current products include, making all of them not affected by
this issue.
2) Solution or Work-Around
There is no known workaround, please install the update packages.
3) Special Instructions and Notes
The RPM update process should restart the named service automatically,
but cross check if this happens and if it still correctly always as usual.
4) Package Location and Checksums
The preferred method for installing security updates is to use the YaST
"Online Update" module or the "zypper" commandline tool. The package and
patch management stack will detect which updates are required and
automatically perform 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 11.4:
http://download.opensuse.org/update/11.4/rpm/i586/bind-9.7.3P3-0.2.1.i586.rpm
http://download.opensuse.org/update/11.4/rpm/i586/bind-chrootenv-9.7.3P3-0.2.1.i586.rpm
http://download.opensuse.org/update/11.4/rpm/i586/bind-devel-9.7.3P3-0.2.1.i586.rpm
http://download.opensuse.org/update/11.4/rpm/i586/bind-libs-9.7.3P3-0.2.1.i586.rpm
http://download.opensuse.org/update/11.4/rpm/i586/bind-utils-9.7.3P3-0.2.1.i586.rpm
openSUSE 11.3:
http://download.opensuse.org/update/11.3/rpm/i586/bind-9.7.3P3-0.2.1.i586.rpm
http://download.opensuse.org/update/11.3/rpm/i586/bind-chrootenv-9.7.3P3-0.2.1.i586.rpm
http://download.opensuse.org/update/11.3/rpm/i586/bind-devel-9.7.3P3-0.2.1.i586.rpm
http://download.opensuse.org/update/11.3/rpm/i586/bind-libs-9.7.3P3-0.2.1.i586.rpm
http://download.opensuse.org/update/11.3/rpm/i586/bind-utils-9.7.3P3-0.2.1.i586.rpm
Platform Independent:
openSUSE 11.4:
http://download.opensuse.org/update/11.4/rpm/noarch/bind-doc-9.7.3P3-0.2.1.noarch.rpm
openSUSE 11.3:
http://download.opensuse.org/update/11.3/rpm/noarch/bind-doc-9.7.3P3-0.2.1.noarch.rpm
x86-64 Platform:
openSUSE 11.4:
http://download.opensuse.org/update/11.4/rpm/x86_64/bind-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.4/rpm/x86_64/bind-chrootenv-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.4/rpm/x86_64/bind-devel-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.4/rpm/x86_64/bind-libs-32bit-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.4/rpm/x86_64/bind-libs-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.4/rpm/x86_64/bind-utils-9.7.3P3-0.2.1.x86_64.rpm
openSUSE 11.3:
http://download.opensuse.org/update/11.3/rpm/x86_64/bind-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.3/rpm/x86_64/bind-chrootenv-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.3/rpm/x86_64/bind-devel-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.3/rpm/x86_64/bind-libs-32bit-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.3/rpm/x86_64/bind-libs-9.7.3P3-0.2.1.x86_64.rpm
http://download.opensuse.org/update/11.3/rpm/x86_64/bind-utils-9.7.3P3-0.2.1.x86_64.rpm
Sources:
openSUSE 11.4:
http://download.opensuse.org/update/11.4/rpm/src/bind-9.7.3P3-0.2.1.src.rpm
openSUSE 11.3:
http://download.opensuse.org/update/11.3/rpm/src/bind-9.7.3P3-0.2.1.src.rpm
Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:
SUSE Linux Enterprise Server 10 SP4
http://download.novell.com/patch/finder/?keywords=cc8a9e2229ae1bb06264ae88ecde9d78
SLE SDK 10 SP4
http://download.novell.com/patch/finder/?keywords=cc8a9e2229ae1bb06264ae88ecde9d78
SUSE Linux Enterprise Desktop 10 SP4
http://download.novell.com/patch/finder/?keywords=cc8a9e2229ae1bb06264ae88ecde9d78
SUSE Linux Enterprise Server 11 SP1
http://download.novell.com/patch/finder/?keywords=e12e60f332d68352b2999aa22f2f12eb
SUSE Linux Enterprise Desktop 11 SP1
http://download.novell.com/patch/finder/?keywords=e12e60f332d68352b2999aa22f2f12eb
SUSE Linux Enterprise Software Development Kit 11 SP1
http://download.novell.com/patch/finder/?keywords=e12e60f332d68352b2999aa22f2f12eb
______________________________________________________________________________
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 <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>"
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.
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 Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite. 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:
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
<Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>.
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
<Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>.
=====================================================================
SUSE's security contact is <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> or <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>.
The <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 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 <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>
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