ICS DHCP log function format string attack
| dhcp-log-format-string (17963) |  High Risk |
Description:
Internet Software Consortium (ISC) Dynamic Host Configuration Protocol (DHCP) daemon is vulnerable to a format string attack, caused by a vulnerability in the log functions. A remote attacker, in control of a malicious DNS server, could exploit this vulnerability to execute arbitrary code on the system.
Consequences:
Gain Privileges
Remedy:
For Debian GNU/Linux 3.0 (woody):
Upgrade to the latest dhcp package, as listed below. Refer to DSA-584-1 for more information. See References.
Debian GNU/Linux 3.0 (woody): 2.0pl5-11woody1 or later
For Red Hat Linux:
Refer to RHSA-2005:212-06 for patch, upgrade, or suggested workaround information. See References.
References:
- BugTraq Mailing List, Mon Oct 25 2004 - 19:37:31 CDT : debian dhcpd, old format string bug.
- BugTraq Mailing List, Tue Nov 02 2004 - 11:14:28 CST: Re: debian dhcpd, old format string bug.
- Internet Software Consortium Web site: DHCP.
- BID-11591: ISC DHCPD Remote Format String Vulnerability
- CVE-2004-1006: Format string vulnerability in the log functions in dhcpd for dhcp 2.x allows remote DNS servers to execute arbitrary code via certain DNS messages, a different vulnerability than CVE-2002-0702.
- DSA-584: dhcp -- format string vulnerability
- RHSA-2005-212: dhcp security update
- US-CERT VU#448384: ISC DHCP contains a format string vulnerabilty in errwarn.c
Platforms Affected:
- Debian Debian Linux 3.0
- dhcp DHCP 2.x
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Linux Advanced Workstation 2.1 Itanium
Reported:
Nov 02, 2004
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