Exploit the possiblities

Red Hat Security Advisory 2017-2841-01

Red Hat Security Advisory 2017-2841-01
Posted Oct 2, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2841-01 - The dnsmasq packages contain Dnsmasq, a lightweight DNS forwarder and DHCP server. Security Fix: A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash or, potentially, execute arbitrary code.

tags | advisory, overflow, arbitrary
systems | linux, redhat
advisories | CVE-2017-14491
MD5 | e6a0f6b719626626a93e18fbaf6b8039

Red Hat Security Advisory 2017-2841-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis: Critical: dnsmasq security update
Advisory ID: RHSA-2017:2841-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2841
Issue date: 2017-10-02
CVE Names: CVE-2017-14491
=====================================================================

1. Summary:

An update for dnsmasq is now available for Red Hat Enterprise Linux 5.9
Long Life.

Red Hat Product Security has rated this update as having a security impact
of Critical. 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 Long Life (v. 5.9 server) - i386, ia64, x86_64

3. Description:

The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name
Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.

Security Fix(es):

* A heap buffer overflow was found in dnsmasq in the code responsible for
building DNS replies. An attacker could send crafted DNS packets to dnsmasq
which would cause it to crash or, potentially, execute arbitrary code.
(CVE-2017-14491)

Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J.
Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin
Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for
reporting this issue.

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

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

1495409 - CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies

6. Package List:

Red Hat Enterprise Linux Long Life (v. 5.9 server):

Source:
dnsmasq-2.45-2.el5_9.1.src.rpm

i386:
dnsmasq-2.45-2.el5_9.1.i386.rpm
dnsmasq-debuginfo-2.45-2.el5_9.1.i386.rpm

ia64:
dnsmasq-2.45-2.el5_9.1.ia64.rpm
dnsmasq-debuginfo-2.45-2.el5_9.1.ia64.rpm

x86_64:
dnsmasq-2.45-2.el5_9.1.x86_64.rpm
dnsmasq-debuginfo-2.45-2.el5_9.1.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/

7. References:

https://access.redhat.com/security/cve/CVE-2017-14491
https://access.redhat.com/security/updates/classification/#critical
https://access.redhat.com/security/vulnerabilities/3199382

8. Contact:

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

Copyright 2017 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iD8DBQFZ0mFZXlSAg2UNWIIRAhreAKDD77EYN1zc573nz34A7aATUG/yGwCgjUuj
ZGthZi0GXdZ8bFyol5OctUI=
=JPsV
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

December 2017

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Dec 1st
    15 Files
  • 2
    Dec 2nd
    2 Files
  • 3
    Dec 3rd
    1 Files
  • 4
    Dec 4th
    15 Files
  • 5
    Dec 5th
    15 Files
  • 6
    Dec 6th
    18 Files
  • 7
    Dec 7th
    17 Files
  • 8
    Dec 8th
    15 Files
  • 9
    Dec 9th
    13 Files
  • 10
    Dec 10th
    4 Files
  • 11
    Dec 11th
    41 Files
  • 12
    Dec 12th
    44 Files
  • 13
    Dec 13th
    25 Files
  • 14
    Dec 14th
    10 Files
  • 15
    Dec 15th
    0 Files
  • 16
    Dec 16th
    0 Files
  • 17
    Dec 17th
    0 Files
  • 18
    Dec 18th
    0 Files
  • 19
    Dec 19th
    0 Files
  • 20
    Dec 20th
    0 Files
  • 21
    Dec 21st
    0 Files
  • 22
    Dec 22nd
    0 Files
  • 23
    Dec 23rd
    0 Files
  • 24
    Dec 24th
    0 Files
  • 25
    Dec 25th
    0 Files
  • 26
    Dec 26th
    0 Files
  • 27
    Dec 27th
    0 Files
  • 28
    Dec 28th
    0 Files
  • 29
    Dec 29th
    0 Files
  • 30
    Dec 30th
    0 Files
  • 31
    Dec 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2016 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close