OpenPKG CVS Repository
http://cvs.openpkg.org/
____________________________________________________________________________
Server: cvs.openpkg.org Name: Thomas Lotterer
Root: /e/openpkg/cvs Email: [EMAIL PROTECTED]
Module: openpkg-web Date: 19-Feb-2003 14:48:12
Branch: HEAD Handle: 2003021913480704
Added files:
openpkg-web/security OpenPKG-SA-2003.012-dhcpd.txt
Modified files:
openpkg-web security.txt security.wml
Log:
SA-2003.012-dhcpd; CAN-2003-0039
Summary:
Revision Changes Path
1.21 +1 -0 openpkg-web/security.txt
1.37 +1 -0 openpkg-web/security.wml
1.1 +87 -0 openpkg-web/security/OpenPKG-SA-2003.012-dhcpd.txt
____________________________________________________________________________
patch -p0 <<'@@ .'
Index: openpkg-web/security.txt
============================================================================
$ cvs diff -u -r1.20 -r1.21 security.txt
--- openpkg-web/security.txt 18 Feb 2003 15:13:05 -0000 1.20
+++ openpkg-web/security.txt 19 Feb 2003 13:48:07 -0000 1.21
@@ -1,3 +1,4 @@
+19-Feb-2003: Security Advisory: S<OpenPKG-SA-2003.012-dhcpd>
18-Feb-2003: Security Advisory: S<OpenPKG-SA-2003.011-lynx>
18-Feb-2003: Security Advisory: S<OpenPKG-SA-2003.010-php>
18-Feb-2003: Security Advisory: S<OpenPKG-SA-2003.009-w3m>
@@ .
patch -p0 <<'@@ .'
Index: openpkg-web/security.wml
============================================================================
$ cvs diff -u -r1.36 -r1.37 security.wml
--- openpkg-web/security.wml 18 Feb 2003 15:13:05 -0000 1.36
+++ openpkg-web/security.wml 19 Feb 2003 13:48:07 -0000 1.37
@@ -78,6 +78,7 @@
</define-tag>
<box bdwidth=1 bdcolor="#a5a095" bdspace=10 bgcolor="#e5e0d5">
<table cellspacing=0 cellpadding=0 border=0>
+ <sa 2003.012 dhcpd>
<sa 2003.011 lynx>
<sa 2003.010 php>
<sa 2003.009 w3m>
@@ .
patch -p0 <<'@@ .'
Index: openpkg-web/security/OpenPKG-SA-2003.012-dhcpd.txt
============================================================================
$ cvs diff -u -r0 -r1.1 OpenPKG-SA-2003.012-dhcpd.txt
--- /dev/null 2003-02-19 14:48:11.000000000 +0100
+++ OpenPKG-SA-2003.012-dhcpd.txt 2003-02-19 14:48:11.000000000 +0100
@@ -0,0 +1,87 @@
+________________________________________________________________________
+
+OpenPKG Security Advisory The OpenPKG Project
+http://www.openpkg.org/security.html http://www.openpkg.org
[EMAIL PROTECTED] [EMAIL PROTECTED]
+OpenPKG-SA-2003.012 19-Feb-2003
+________________________________________________________________________
+
+Package: dhcpd
+Vulnerability: denial of service (packet storm)
+OpenPKG Specific: no
+
+Affected Releases: Affected Packages: Corrected Packages:
+OpenPKG CURRENT <= dhcpd-3.0.1rc11-20030116 >= dhcpd-3.0.1rc11-20030219
+OpenPKG 1.2 <= dhcpd-3.0.1rc11-1.2.0 >= dhcpd-3.0.1rc11-1.2.1
+OpenPKG 1.1 <= dhcpd-3.0.1rc9-1.1.1 >= dhcpd-3.0.1rc9-1.1.2
+
+Affected Releases: Dependent Packages: none
+
+Description:
+ Florian Lohoff discovered a bug [0] in dhcrelay which is part of the
+ ISC DHCPD [1]. The bug is causing the relay agent to send a continuing
+ packet storm towards the configured dhcp server(s) in case of a
+ malicious BOOTP packet. The Common Vulnerabilities and Exposures
+ (CVE) project assigned the id CAN-2003-0039 [2] to the problem.
+
+ The update does not ultimately fix the root cause of the problem.
+ However, it improves dhcrelay's compliance to RFC1542 [10] by
+ rigorously supporting the requirements listed in section 4.1.1
+ BOOTREQUEST Messages and thus limiting havoc wreaked to the network:
+
+ > The relay agent MUST silently discard BOOTREQUEST messages whose
+ > 'hops' field exceeds the value 16. A configuration option SHOULD be
+ > provided to set this threshold to a smaller value if desired by the
+ > network manager. The default setting for a configurable threshold
+ > SHOULD be 4.
+
+ The new configuration option is '-c', it defaults to 4, the range of
+ parameter is between 0 and 16.
+
+ Please check whether you are affected by running "<prefix>/bin/rpm
+ -q dhcpd". If you have the "dhcpd" package installed and its version
+ is affected (see above), we recommend that you immediately upgrade
+ it (see Solution). [3][4]
+
+Solution:
+ Select the updated source RPM appropriate for your OpenPKG release
+ [5][6], fetch it from the OpenPKG FTP service [7][8] or a mirror
+ location, verify its integrity [9], build a corresponding binary RPM
+ from it [3] and update your OpenPKG installation by applying the binary
+ RPM [4]. For the current release OpenPKG 1.1, perform the following
+ operations to permanently fix the security problem (for other releases
+ adjust accordingly).
+
+ $ ftp ftp.openpkg.org
+ ftp> bin
+ ftp> cd release/1.2/UPD
+ ftp> get dhcpd-3.0.1rc11-1.2.1.src.rpm
+ ftp> bye
+ $ <prefix>/bin/rpm -v --checksig dhcpd-3.0.1rc11-1.2.1.src.rpm
+ $ <prefix>/bin/rpm --rebuild dhcpd-3.0.1rc11-1.2.1.src.rpm
+ $ su -
+ # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/dhcpd-3.0.1rc11-1.2.1.*.rpm
+________________________________________________________________________
+
+References:
+ [0] http://marc.theaimsgroup.com/?l=bugtraq&m=104310927813830&w=2
+ [1] http://www.isc.org/products/DHCP/dhcp-v3.html
+ [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0039
+ [3] http://www.openpkg.org/tutorial.html#regular-source
+ [4] http://www.openpkg.org/tutorial.html#regular-binary
+ [5] ftp://ftp.openpkg.org/release/1.1/UPD/dhcpd-3.0.1rc9-1.1.2.src.rpm
+ [6] ftp://ftp.openpkg.org/release/1.2/UPD/dhcpd-3.0.1rc11-1.2.1.src.rpm
+ [7] ftp://ftp.openpkg.org/release/1.1/UPD/
+ [8] ftp://ftp.openpkg.org/release/1.2/UPD/
+ [9] http://www.openpkg.org/security.html#signature
+ [10] ftp://ftp.rfc-editor.org/in-notes/rfc1542.txt
+________________________________________________________________________
+
+For security reasons, this advisory was digitally signed with
+the OpenPGP public key "OpenPKG <[EMAIL PROTECTED]>" (ID 63C4CB9F)
+of the OpenPKG project which you can find under the official URL
+http://www.openpkg.org/openpkg.pgp or on http://keyserver.pgp.com/. To
+check the integrity of this advisory, verify its digital signature by
+using GnuPG (http://www.gnupg.org/). For instance, pipe this message to
+the command "gpg --verify --keyserver keyserver.pgp.com".
+________________________________________________________________________
@@ .
______________________________________________________________________
The OpenPKG Project www.openpkg.org
CVS Repository Commit List [EMAIL PROTECTED]
