U radu programskog paketa Bind 9.7 za Red Hat Enterprise Linux 5 uočena su i ispravljena dva sigurnosna propusta koja udaljeni napadač može iskoristiti za rušenje aplikacije, izvođenje "ghost domain names" napada te otkrivanje osjetljivih informacija.
Paket:
BIND 9.7.x
Operacijski sustavi:
Red Hat Enterprise Linux 5
Problem:
neodgovarajuće rukovanje datotekama, pogreška u programskoj komponenti
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Red Hat Security Advisory
Synopsis: Important: bind97 security update
Advisory ID: RHSA-2012:0717-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0717.html
Issue date: 2012-06-07
CVE Names: CVE-2012-1033 CVE-2012-1667
=====================================================================
1. Summary:
Updated bind97 packages that fix two security issues are now available for
Red Hat Enterprise Linux 5.
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
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 bind97 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:
RHEL Desktop Workstation (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/bind97-9.7.0-10.P2.el5_8.1.src.rpm
i386:
bind97-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.i386.rpm
x86_64:
bind97-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-utils-9.7.0-10.P2.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/bind97-9.7.0-10.P2.el5_8.1.src.rpm
i386:
bind97-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.i386.rpm
ia64:
bind97-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.ia64.rpm
ppc:
bind97-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.ppc64.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.ppc64.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.ppc64.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.ppc.rpm
s390x:
bind97-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.s390.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.s390.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.s390.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.s390x.rpm
x86_64:
bind97-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.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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