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Alerts This Week
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Alerts This Week
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Red Hat: RHSA-2016-2100-01 Major: Apache Web Server Security Vulnerability

red hat
Calendar Grey October 25, 2016
Scroller Redhat
Urgent patch release for CentOS dealing with vital vulnerability fixes concerning service disruption in packet management and response oversight.
An update for bind is now available for Red Hat Enterprise Linux 6.2 Advanced Update Support, Red Hat Enterprise Linux 6.4 Advanced Update Support, Red Hat Enterprise Linux 6.5 Adv...

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.

Summary

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 constructed a response to a query that met certain criteria. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS request packet. (CVE-2016-2776)
* A denial of service flaw was found in the way BIND handled packets with malformed options. A remote attacker could use this flaw to make named exit unexpectedly with an assertion failure via a specially crafted DNS packet. (CVE-2016-2848)
Red Hat would like to thank ISC for reporting CVE-2016-2776.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat bind security fix important DNS

References

https://access.redhat.com/security/cve/CVE-2016-2776 https://access.redhat.com/security/cve/CVE-2016-2848 https://access.redhat.com/security/updates/classification#important https://kb.isc.org/docs/aa-01419 https://kb.isc.org/docs/aa-01433

Package List

Red Hat Enterprise Linux HPC Node EUS (v. 6.6):
Source: bind-9.8.2-0.30.rc1.el6_6.6.src.rpm
x86_64: bind-debuginfo-9.8.2-0.30.rc1.el6_6.6.i686.rpm bind-debuginfo-9.8.2-0.30.rc1.el6_6.6.x86_64.rpm bind-libs-9.8.2-0.30.rc1.el6_6.6.i686.rpm bind-libs-9.8.2-0.30.rc1.el6_6.6.x86_64.rpm bind-utils-9.8.2-0.30.rc1.el6_6.6.x86_64.rpm
Red Hat Enterprise Linux HPC Node EUS (v. 6.7):
Source: bind-9.8.2-0.37.rc1.el6_7.8.src.rpm
x86_64: bind-debuginfo-9.8.2-0.37.rc1.el6_7.8.i686.rpm bind-debuginfo-9.8.2-0.37.rc1.el6_7.8.x86_64.rpm bind-libs-9.8.2-0.37.rc1.el6_7.8.i686.rpm bind-libs-9.8.2-0.37.rc1.el6_7.8.x86_64.rpm bind-utils-9.8.2-0.37.rc1.el6_7.8.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6):
x86_64: bind-9.8.2-0.30.rc1.el6_6.6.x86_64.rpm bind-chroot-9.8.2-0.30.rc1.el6_6.6.x86_64.rpm bind-debuginfo-9.8.2-0.30.rc1.el6_6.6.i686.rpm bind-debuginfo-9.8.2-0.30.rc1.el6_6.6.x86_64.rpm bind-devel-9.8.2-0.30.rc1.el6_6.6.i686.rpm bind-devel-9.8.2-0.30.rc1.el6_6.6.x86_64.rpm bind-sdb-9.8.2-0.30.rc1.el6_6.6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7):
x86_64: bind-9.8.2-0.37.rc1.el6_7.8.x86_64.rpm bind-chroot-9.8.2-0.37.rc1.el6_7.8.x86_64.rpm bind-debuginfo-9.8.2-0.37.rc1.el6_7.8.i686.rpm bind-debuginfo-9.8.2-0.37.rc1.el6_7.8.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:2099-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:2099.html
Issue date: 2016-10-25

Topic

An update for bind is now available for Red Hat Enterprise Linux 6.2Advanced Update Support, Red Hat Enterprise Linux 6.4 Advanced UpdateSupport, Red Hat Enterprise Linux 6.5 Advanced Update Support, Red HatEnterprise Linux 6.5 Telco Extended Update Support, Red Hat EnterpriseLinux 6.6 Extended Update Support, and Red Hat Enterprise Linux 6.7Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat bind security fix important DNS

Relevant Releases Architectures

Red Hat Enterprise Linux HPC Node EUS (v. 6.6) - x86_64

Red Hat Enterprise Linux HPC Node EUS (v. 6.7) - x86_64

Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) - x86_64

Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - x86_64

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

Red Hat Enterprise Linux Server AUS (v. 6.4) - x86_64

Red Hat Enterprise Linux Server AUS (v. 6.5) - x86_64

Red Hat Enterprise Linux Server EUS (v. 6.6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server EUS (v. 6.7) - i386, ppc64, s390x, x86_64

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

Red Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 6.5) - x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 6.6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 6.7) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional TUS (v. 6.5) - x86_64

Red Hat Enterprise Linux Server TUS (v. 6.5) - x86_64

Bugs Fixed

1378380 - CVE-2016-2776 bind: assertion failure in buffer.c while building responses to a specifically constructed request

1385450 - CVE-2016-2848 bind: assertion failure triggered by a packet with malformed options

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