Login
Newsletter
Werbung

Sicherheit: Ausführen beliebiger Kommandos in ISC DHCP
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in ISC DHCP
ID: RHSA-2018:1459-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Di, 15. Mai 2018, 22:16
Referenzen: https://access.redhat.com/security/vulnerabilities/3442151
https://access.redhat.com/security/cve/CVE-2018-1111
Applikationen: ISC DHCP

Originalnachricht

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis: Critical: dhcp security update
Advisory ID: RHSA-2018:1459-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:1459
Issue date: 2018-05-15
CVE Names: CVE-2018-1111
=====================================================================

1. Summary:

An update for dhcp is now available for Red Hat Enterprise Linux 6.6
Advanced Update Support and Red Hat Enterprise Linux 6.6 Telco Extended
Update Support.

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 Server AUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server TUS (v. 6.6) - x86_64

3. Description:

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows
individual devices on an IP network to get their own network configuration
information, including an IP address, a subnet mask, and a broadcast
address. The dhcp packages provide a relay agent and ISC DHCP service
required to enable and administer DHCP on a network.

Security Fix(es):

* A command injection flaw was found in the NetworkManager integration
script included in the DHCP client packages in Red Hat Enterprise Linux. A
malicious DHCP server, or an attacker on the local network able to spoof
DHCP responses, could use this flaw to execute arbitrary commands with root
privileges on systems using NetworkManager and configured to obtain network
configuration using the DHCP protocol. (CVE-2018-1111)

Red Hat would like to thank Felix Wilhelm (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/):

1567974 - CVE-2018-1111 dhcp: Command injection vulnerability in the DHCP
client NetworkManager integration script

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 6.6):

Source:
dhcp-4.1.1-43.P1.el6_6.2.src.rpm

x86_64:
dhclient-4.1.1-43.P1.el6_6.2.x86_64.rpm
dhcp-4.1.1-43.P1.el6_6.2.x86_64.rpm
dhcp-common-4.1.1-43.P1.el6_6.2.x86_64.rpm
dhcp-debuginfo-4.1.1-43.P1.el6_6.2.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 6.6):

Source:
dhcp-4.1.1-43.P1.el6_6.2.src.rpm

x86_64:
dhclient-4.1.1-43.P1.el6_6.2.x86_64.rpm
dhcp-4.1.1-43.P1.el6_6.2.x86_64.rpm
dhcp-common-4.1.1-43.P1.el6_6.2.x86_64.rpm
dhcp-debuginfo-4.1.1-43.P1.el6_6.2.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 6.6):

x86_64:
dhcp-debuginfo-4.1.1-43.P1.el6_6.2.i686.rpm
dhcp-debuginfo-4.1.1-43.P1.el6_6.2.x86_64.rpm
dhcp-devel-4.1.1-43.P1.el6_6.2.i686.rpm
dhcp-devel-4.1.1-43.P1.el6_6.2.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 6.6):

x86_64:
dhcp-debuginfo-4.1.1-43.P1.el6_6.2.i686.rpm
dhcp-debuginfo-4.1.1-43.P1.el6_6.2.x86_64.rpm
dhcp-devel-4.1.1-43.P1.el6_6.2.i686.rpm
dhcp-devel-4.1.1-43.P1.el6_6.2.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-2018-1111
https://access.redhat.com/security/updates/classification/#critical
https://access.redhat.com/security/vulnerabilities/3442151

8. Contact:

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

Copyright 2018 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=oUm8
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce
Pro-Linux
Traut euch!
Neue Nachrichten
Werbung