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Sicherheit: Zwei Probleme in BIND
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in BIND
ID: RHSA-2016:0601-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Mi, 6. April 2016, 16:35
Referenzen: https://access.redhat.com/security/cve/CVE-2016-1286
https://access.redhat.com/security/cve/CVE-2016-1285
https://kb.isc.org/article/AA-01352
https://kb.isc.org/article/AA-01353

Originalnachricht

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: bind security update
Advisory ID: RHSA-2016:0601-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0601.html
Issue date: 2016-04-06
CVE Names: CVE-2016-1285 CVE-2016-1286
=====================================================================

1. Summary:

An update for bind is now available for Red Hat Enterprise Linux 6.2
Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server AUS (v. 6.2) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.2) - 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.

Security Fix(es):

* A denial of service flaw was found in the way BIND parsed signature
records for DNAME records. By sending a specially crafted query, a remote
attacker could use this flaw to cause named to crash. (CVE-2016-1286)

* A denial of service flaw was found in the way BIND processed certain
control channel input. A remote attacker able to send a malformed packet to
the control channel could use this flaw to cause named to crash.
(CVE-2016-1285)

Red Hat would like to thank ISC for reporting these issues.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the update, the BIND daemon (named) will be restarted
automatically.

5. Bugs fixed (https://bugzilla.redhat.com/):

1315674 - CVE-2016-1285 bind: malformed packet sent to rndc can trigger
assertion failure
1315680 - CVE-2016-1286 bind: malformed signature records for DNAME records can
trigger assertion failure

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 6.2):

Source:
bind-9.7.3-8.P3.el6_2.4.src.rpm

x86_64:
bind-9.7.3-8.P3.el6_2.4.x86_64.rpm
bind-chroot-9.7.3-8.P3.el6_2.4.x86_64.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.4.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.4.x86_64.rpm
bind-libs-9.7.3-8.P3.el6_2.4.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.4.x86_64.rpm
bind-utils-9.7.3-8.P3.el6_2.4.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 6.2):

Source:
bind-9.7.3-8.P3.el6_2.4.src.rpm

x86_64:
bind-debuginfo-9.7.3-8.P3.el6_2.4.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.4.x86_64.rpm
bind-devel-9.7.3-8.P3.el6_2.4.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.4.x86_64.rpm
bind-sdb-9.7.3-8.P3.el6_2.4.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/

7. References:

https://access.redhat.com/security/cve/CVE-2016-1285
https://access.redhat.com/security/cve/CVE-2016-1286
https://access.redhat.com/security/updates/classification/#important
https://kb.isc.org/article/AA-01352
https://kb.isc.org/article/AA-01353

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2016 Red Hat, Inc.
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