ISC DHCPD NSUPDATE MiniRes Library Remote Buffer Overflow Vulnerabilities

BID:6627

Info

ISC DHCPD NSUPDATE MiniRes Library Remote Buffer Overflow Vulnerabilities

Bugtraq ID: 6627
Class: Boundary Condition Error
CVE: CVE-2003-0026
Remote: Yes
Local: No
Published: Jan 15 2003 12:00AM
Updated: Jul 11 2009 07:17PM
Credit: These issues were reported by ISC.
Vulnerable: ISC DHCPD 3.0.1 rc9
+ Conectiva Linux Enterprise Edition 1.0
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
+ OpenPKG OpenPKG 1.1
+ SuSE Linux 8.1
ISC DHCPD 3.0.1 rc8
ISC DHCPD 3.0.1 rc7
- FreeBSD FreeBSD 4.5
- FreeBSD FreeBSD 4.4
- FreeBSD FreeBSD 4.3
- FreeBSD FreeBSD 4.2
- FreeBSD FreeBSD 4.1.1
ISC DHCPD 3.0.1 rc6
+ SuSE Linux 8.0 i386
 + SuSE Linux 8.0
ISC DHCPD 3.0.1 rc5
ISC DHCPD 3.0.1 rc4
+ OpenPKG OpenPKG 1.0
ISC DHCPD 3.0.1 rc3
ISC DHCPD 3.0.1 rc2
ISC DHCPD 3.0.1 rc10
+ OpenPKG OpenPKG Current
 ISC DHCPD 3.0.1 rc1
ISC DHCPD 3.0 rc4
+ SuSE Linux 7.2 i386
 + SuSE Linux 7.2
ISC DHCPD 3.0 rc12
+ SuSE Linux 7.3 sparc
 + SuSE Linux 7.3 ppc
 + SuSE Linux 7.3 i386
 + SuSE Linux 7.3
ISC DHCPD 3.0 pl1
+ Gentoo Linux 1.4 _rc2
 + Gentoo Linux 1.4 _rc1
 + Redhat Linux 8.0 i386
 + Redhat Linux 8.0
+ Slackware Linux 8.1
ISC DHCPD 3.0 b2pl9
+ Mandriva Linux Mandrake 7.2
ISC DHCPD 3.0 b2pl23
+ MandrakeSoft Single Network Firewall 7.2
ISC DHCPD 3.0
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1
+ MandrakeSoft Multi Network Firewall 2.0
+ Mandriva Linux Mandrake 9.0
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
- S.u.S.E. Linux Connectivity Server
- S.u.S.E. Linux Database Server 0
 - S.u.S.E. Linux Enterprise Server for S/390
- S.u.S.E. SuSE eMail Server III
- SuSE Linux 8.0
- SuSE Linux 7.3
- SuSE Linux 7.2
- SuSE SUSE Linux Enterprise Server 7
Not Vulnerable: ISC DHCPD 3.0.1 rc11
+ OpenPKG OpenPKG 1.2
+ OpenPKG OpenPKG Current
 ISC DHCPD 3.0 pl2

Discussion

ISC DHCPD NSUPDATE MiniRes Library Remote Buffer Overflow Vulnerabilities

Multiple buffer overflow vulnerabilities have been reported for the ISC DHCPD service. The vulnerability occurs when the DHCP server is configured to dynamically update records. The vulnerability exists in the library used by NSUPDATE to resolve hostnames.

An attacker can exploit these vulnerabilities by sending a malformed DHCP message containing an overly large hostname value. This will trigger the buffer overflow condition and any embedded attacker-supplied code may be executed.

Exploit / POC

ISC DHCPD NSUPDATE MiniRes Library Remote Buffer Overflow Vulnerabilities

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

ISC DHCPD NSUPDATE MiniRes Library Remote Buffer Overflow Vulnerabilities

Solution:
SuSE reportedly ships with vulnerable packages. An advisory and fixes are forthcoming.

BSD/OS is prone to this issue. The vulnerability is addressed by the M431-001 and M500-004 patches for the 4.3.1 and 5.0 versions of BSD/OS. Users should contact the vendor for further information about obtaining and applying fixes.

OpenPKG has released an advisory containing updated dhcpd packages which address this issue. OpenPKG CURRENT is addressed by the dhcpd-3.0.1rc11-20030116 package, OpenPKG 1.1 is addressed by the dhcpd-3.0.1rc9-1.1.1 package and OpenPKG 1.0 is addressed by the dhcpd-3.0.1rc4-1.0.1 package.

Gentoo Linux has released an advisory. Users who have installed net-misc/dhcp are advised to upgrade their systems to dhcp-3.0_p2 by issuing the following commands:

emerge sync
emerge -u dhcp
emerge clean

Debian has made fixes available. See referenced advisory DSA 231-1 for additional details.

SuSE has released an advisory. Information about obtaining and applying fixes for SuSE Linux are available in the referenced advisory.

The FreeBSD ports collection contains the vulnerable software. Users are advised to update the port to version 3.0.1.r11 if it has been installed.

The following fixes are available:


ISC DHCPD 3.0 pl1

ISC DHCPD 3.0 rc12

ISC DHCPD 3.0 b2pl23

ISC DHCPD 3.0 b2pl9

ISC DHCPD 3.0 rc4

ISC DHCPD 3.0

ISC DHCPD 3.0.1 rc3

ISC DHCPD 3.0.1 rc4

ISC DHCPD 3.0.1 rc5

ISC DHCPD 3.0.1 rc7

ISC DHCPD 3.0.1 rc2

ISC DHCPD 3.0.1 rc1

ISC DHCPD 3.0.1 rc8

ISC DHCPD 3.0.1 rc6

ISC DHCPD 3.0.1 rc9

ISC DHCPD 3.0.1 rc10

References

ISC DHCPD NSUPDATE MiniRes Library Remote Buffer Overflow Vulnerabilities

References:

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