U radu programskog paketa Bind otkrivena su dva sigurnosna propusta. Spomenute nedostatke udaljeni zlonamjerni korisnik može iskoristiti za izvođenje napada uskraćivanjem usluge, "ghost domain names" napada te za čitanje osjetljivih informacija.
| Paket: | BIND 9.7.x |
| Operacijski sustavi: | Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6 |
| Problem: | neodgovarajuće rukovanje datotekama, pogreška u programskoj komponenti |
| Iskorištavanje: | udaljeno |
| Posljedica: | otkrivanje osjetljivih informacija, uskraćivanje usluga (DoS) |
| Rješenje: | programska zakrpa proizvođača |
| CVE: | CVE-2012-1033, CVE-2012-1667 |
| Izvorni ID preporuke: | RHSA-2012:0716-01 |
| Izvor: | Red Hat |
| Problem: | |
| Propusti su posljedica nepravilnog rukovanja unosima s praznim RDATA dijelom te prepisivanja imena poslužitelja i TTL vrijednosti u NS zapisima pri obradi upita o A unosima. |
|
| Posljedica: | |
| Udaljeni napadač može iskoristiti navedene propuste za čitanje pojedinih informacija te izvođenje DoS i "ghost domain names" napada. |
|
| Rješenje: | |
| Preporuča se primjena nadogradnje. |
|
Izvorni tekst preporuke
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: bind security update
Advisory ID: RHSA-2012:0716-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0716.html
Issue date: 2012-06-07
CVE Names: CVE-2012-1033 CVE-2012-1667
=====================================================================
1. Summary:
Updated bind packages that fix two security issues are now available for
Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.
2. Relevant releases/architectures:
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64
3. Description:
The Berkeley Internet Name Domain (BIND) is an implementation of the Domain
Name System (DNS) protocols. BIND includes a DNS server (named); a resolver
library (routines for applications to use when interfacing with DNS); and
tools for verifying that the DNS server is operating correctly.
A flaw was found in the way BIND handled zero length resource data records.
A malicious owner of a DNS domain could use this flaw to create
specially-crafted DNS resource records that would cause a recursive
resolver or secondary server to crash or, possibly, disclose portions of
its memory. (CVE-2012-1667)
A flaw was found in the way BIND handled the updating of cached name server
(NS) resource records. A malicious owner of a DNS domain could use this
flaw to keep the domain resolvable by the BIND server even after the
delegation was removed from the parent DNS zone. With this update, BIND
limits the time-to-live of the replacement record to that of the
time-to-live of the record being replaced. (CVE-2012-1033)
Users of bind are advised to upgrade to these updated packages, which
correct these issues. After installing the update, the BIND daemon (named)
will be restarted automatically.
4. Solution:
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258
5. Bugs fixed (http://bugzilla.redhat.com/):
788650 - CVE-2012-1033 bind: deleted domain name resolving flaw
828078 - CVE-2012-1667 bind: handling of zero length rdata can cause named to
terminate unexpectedly
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/bind-9.3.6-20.P1.el5_8.1.src.rpm
i386:
bind-9.3.6-20.P1.el5_8.1.i386.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libs-9.3.6-20.P1.el5_8.1.i386.rpm
bind-sdb-9.3.6-20.P1.el5_8.1.i386.rpm
bind-utils-9.3.6-20.P1.el5_8.1.i386.rpm
x86_64:
bind-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.i386.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-libs-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libs-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-sdb-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-utils-9.3.6-20.P1.el5_8.1.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/bind-9.3.6-20.P1.el5_8.1.src.rpm
i386:
bind-chroot-9.3.6-20.P1.el5_8.1.i386.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.i386.rpm
bind-devel-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.i386.rpm
caching-nameserver-9.3.6-20.P1.el5_8.1.i386.rpm
x86_64:
bind-chroot-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.i386.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-devel-9.3.6-20.P1.el5_8.1.i386.rpm
bind-devel-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.x86_64.rpm
caching-nameserver-9.3.6-20.P1.el5_8.1.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/bind-9.3.6-20.P1.el5_8.1.src.rpm
i386:
bind-9.3.6-20.P1.el5_8.1.i386.rpm
bind-chroot-9.3.6-20.P1.el5_8.1.i386.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.i386.rpm
bind-devel-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libs-9.3.6-20.P1.el5_8.1.i386.rpm
bind-sdb-9.3.6-20.P1.el5_8.1.i386.rpm
bind-utils-9.3.6-20.P1.el5_8.1.i386.rpm
caching-nameserver-9.3.6-20.P1.el5_8.1.i386.rpm
ia64:
bind-9.3.6-20.P1.el5_8.1.ia64.rpm
bind-chroot-9.3.6-20.P1.el5_8.1.ia64.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.i386.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.ia64.rpm
bind-devel-9.3.6-20.P1.el5_8.1.ia64.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.ia64.rpm
bind-libs-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libs-9.3.6-20.P1.el5_8.1.ia64.rpm
bind-sdb-9.3.6-20.P1.el5_8.1.ia64.rpm
bind-utils-9.3.6-20.P1.el5_8.1.ia64.rpm
caching-nameserver-9.3.6-20.P1.el5_8.1.ia64.rpm
ppc:
bind-9.3.6-20.P1.el5_8.1.ppc.rpm
bind-chroot-9.3.6-20.P1.el5_8.1.ppc.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.ppc.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.ppc64.rpm
bind-devel-9.3.6-20.P1.el5_8.1.ppc.rpm
bind-devel-9.3.6-20.P1.el5_8.1.ppc64.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.ppc.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.ppc64.rpm
bind-libs-9.3.6-20.P1.el5_8.1.ppc.rpm
bind-libs-9.3.6-20.P1.el5_8.1.ppc64.rpm
bind-sdb-9.3.6-20.P1.el5_8.1.ppc.rpm
bind-utils-9.3.6-20.P1.el5_8.1.ppc.rpm
caching-nameserver-9.3.6-20.P1.el5_8.1.ppc.rpm
s390x:
bind-9.3.6-20.P1.el5_8.1.s390x.rpm
bind-chroot-9.3.6-20.P1.el5_8.1.s390x.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.s390.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.s390x.rpm
bind-devel-9.3.6-20.P1.el5_8.1.s390.rpm
bind-devel-9.3.6-20.P1.el5_8.1.s390x.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.s390.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.s390x.rpm
bind-libs-9.3.6-20.P1.el5_8.1.s390.rpm
bind-libs-9.3.6-20.P1.el5_8.1.s390x.rpm
bind-sdb-9.3.6-20.P1.el5_8.1.s390x.rpm
bind-utils-9.3.6-20.P1.el5_8.1.s390x.rpm
caching-nameserver-9.3.6-20.P1.el5_8.1.s390x.rpm
x86_64:
bind-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-chroot-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.i386.rpm
bind-debuginfo-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-devel-9.3.6-20.P1.el5_8.1.i386.rpm
bind-devel-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libbind-devel-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-libs-9.3.6-20.P1.el5_8.1.i386.rpm
bind-libs-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-sdb-9.3.6-20.P1.el5_8.1.x86_64.rpm
bind-utils-9.3.6-20.P1.el5_8.1.x86_64.rpm
caching-nameserver-9.3.6-20.P1.el5_8.1.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/bind-9.7.3-8.P3.el6_2.3.src.rpm
i386:
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.3.i686.rpm
bind-utils-9.7.3-8.P3.el6_2.3.i686.rpm
x86_64:
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-libs-9.7.3-8.P3.el6_2.3.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-utils-9.7.3-8.P3.el6_2.3.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/bind-9.7.3-8.P3.el6_2.3.src.rpm
i386:
bind-9.7.3-8.P3.el6_2.3.i686.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.3.i686.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.i686.rpm
x86_64:
bind-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-devel-9.7.3-8.P3.el6_2.3.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/bind-9.7.3-8.P3.el6_2.3.src.rpm
x86_64:
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-libs-9.7.3-8.P3.el6_2.3.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-utils-9.7.3-8.P3.el6_2.3.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/bind-9.7.3-8.P3.el6_2.3.src.rpm
x86_64:
bind-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-devel-9.7.3-8.P3.el6_2.3.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/bind-9.7.3-8.P3.el6_2.3.src.rpm
i386:
bind-9.7.3-8.P3.el6_2.3.i686.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.3.i686.rpm
bind-utils-9.7.3-8.P3.el6_2.3.i686.rpm
ppc64:
bind-9.7.3-8.P3.el6_2.3.ppc64.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.ppc64.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.ppc.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.ppc64.rpm
bind-libs-9.7.3-8.P3.el6_2.3.ppc.rpm
bind-libs-9.7.3-8.P3.el6_2.3.ppc64.rpm
bind-utils-9.7.3-8.P3.el6_2.3.ppc64.rpm
s390x:
bind-9.7.3-8.P3.el6_2.3.s390x.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.s390x.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.s390.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.s390x.rpm
bind-libs-9.7.3-8.P3.el6_2.3.s390.rpm
bind-libs-9.7.3-8.P3.el6_2.3.s390x.rpm
bind-utils-9.7.3-8.P3.el6_2.3.s390x.rpm
x86_64:
bind-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-libs-9.7.3-8.P3.el6_2.3.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-utils-9.7.3-8.P3.el6_2.3.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/bind-9.7.3-8.P3.el6_2.3.src.rpm
i386:
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.3.i686.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.i686.rpm
ppc64:
bind-debuginfo-9.7.3-8.P3.el6_2.3.ppc.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.ppc64.rpm
bind-devel-9.7.3-8.P3.el6_2.3.ppc.rpm
bind-devel-9.7.3-8.P3.el6_2.3.ppc64.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.ppc64.rpm
s390x:
bind-debuginfo-9.7.3-8.P3.el6_2.3.s390.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.s390x.rpm
bind-devel-9.7.3-8.P3.el6_2.3.s390.rpm
bind-devel-9.7.3-8.P3.el6_2.3.s390x.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.s390x.rpm
x86_64:
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-devel-9.7.3-8.P3.el6_2.3.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/bind-9.7.3-8.P3.el6_2.3.src.rpm
i386:
bind-9.7.3-8.P3.el6_2.3.i686.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.3.i686.rpm
bind-utils-9.7.3-8.P3.el6_2.3.i686.rpm
x86_64:
bind-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-chroot-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-libs-9.7.3-8.P3.el6_2.3.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-utils-9.7.3-8.P3.el6_2.3.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/bind-9.7.3-8.P3.el6_2.3.src.rpm
i386:
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.3.i686.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.i686.rpm
x86_64:
bind-debuginfo-9.7.3-8.P3.el6_2.3.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-devel-9.7.3-8.P3.el6_2.3.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.3.x86_64.rpm
bind-sdb-9.7.3-8.P3.el6_2.3.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
7. References:
https://www.redhat.com/security/data/cve/CVE-2012-1033.html
https://www.redhat.com/security/data/cve/CVE-2012-1667.html
https://access.redhat.com/security/updates/classification/#important
http://www.isc.org/software/bind/advisories/cve-2012-1033
http://www.isc.org/software/bind/advisories/cve-2012-1667
8. Contact:
The Red Hat security contact is <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2012 Red Hat, Inc.
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