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Sicherheit: Denial of Service in dhcp
Aktuelle Meldungen Distributionen
Name: Denial of Service in dhcp
ID: FEDORA-2011-10740
Distribution: Fedora
Plattformen: Fedora 15
Datum: Sa, 27. August 2011, 18:38
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2748
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2749
Applikationen: ISC DHCP

Originalnachricht

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Fedora Update Notification
FEDORA-2011-10740
2011-08-12 10:35:29
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Name : dhcp
Product : Fedora 15
Version : 4.2.1
Release : 10.P1.fc15
URL : http://isc.org/products/DHCP/
Summary : Dynamic host configuration protocol software
Description :
DHCP (Dynamic Host Configuration Protocol) is a protocol which allows
individual devices on an IP network to get their own network
configuration information (IP address, subnetmask, broadcast address,
etc.) from a DHCP server. The overall purpose of DHCP is to make it
easier to administer a large network. The dhcp package includes the
ISC DHCP service and relay agent.

To use DHCP on your network, install a DHCP service (or relay agent),
and on clients run a DHCP client daemon. The dhcp package provides
the ISC DHCP service and relay agent.

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Update Information:

This update fixes a pair of defects that could cause the server to halt upon
processing certain packets.
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ChangeLog:

* Thu Aug 11 2011 Jiri Popelka <jpopelka@redhat.com> - 12:4.2.1-10.P1
- A pair of defects cause the server to halt upon processing certain packets
(CVE-2011-2748, CVE-2011-2749, #729850)
* Tue May 17 2011 Jiri Popelka <jpopelka@redhat.com> - 12:4.2.1-9.P1
- Fix typo in triggerun scriptlet (#705417)
* Mon May 16 2011 Jiri Popelka <jpopelka@redhat.com> - 12:4.2.1-8.P1
- Packages dhcp/dhclient/dhcp-common explicitly require the libs sub-package
with the same version and release (bug #705037).
- Fix triggerun scriptlet
* Mon May 9 2011 Jiri Popelka <jpopelka@redhat.com> - 12:4.2.1-7.P1
- Fix 11-dhclient to export variables (#702735)
* Fri Apr 29 2011 Jiri Popelka <jpopelka@redhat.com> - 12:4.2.1-6.P1
- Comply with guidelines for systemd services
* Wed Apr 27 2011 Jiri Popelka <jpopelka@redhat.com> - 12:4.2.1-5.P1
- Fix NetworkManager dispatcher script for dhcpd to support arbitrary interface
names
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References:

[ 1 ] Bug #729382 - CVE-2011-2748 CVE-2011-2749 dhcp: denial of service flaws
https://bugzilla.redhat.com/show_bug.cgi?id=729382
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This update can be installed with the "yum" update program. Use
su -c 'yum update dhcp' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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