Executive Summary
| Summary | |
|---|---|
| Title | dhcp security update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2011:0256 | First vendor Publication | 2011-02-15 |
| Vendor | RedHat | Last vendor Modification | 2011-02-15 |
| Severity (Vendor) | Moderate | Revision | 01 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 7.8 | Attack Range | Network |
| Cvss Impact Score | 6.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Problem Description: Updated dhcp packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, 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. DHCPv6 is the DHCP protocol version for IPv6 networks. A flaw was found in the way the dhcpd daemon processed certain DHCPv6 messages for addresses that had previously been declined and marked as abandoned internally. If a remote attacker sent such messages to dhcpd, it could cause dhcpd to crash due to an assertion failure if it was running as a DHCPv6 server. (CVE-2011-0413) Red Hat would like to thank Internet Systems Consortium for reporting this issue. Users running dhcpd as a DHCPv6 server should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, all DHCP servers will be restarted automatically. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 672755 - CVE-2011-0413 dhcp: unexpected abort caused by a DHCPv6 decline message |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2011-0256.html |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-20 | Improper Input Validation |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:12965 | |||
| Oval ID: | oval:org.mitre.oval:def:12965 | ||
| Title: | DSA-2184-1 isc-dhcp -- denial of service | ||
| Description: | It was discovered that the ISC DHCPv6 server does not correctly process requests which come from unexpected source addresses, leading to an assertion failure and a daemon crash. The oldstable distribution is not affected by this problem. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2184-1 CVE-2011-0413 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | isc-dhcp |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:21503 | |||
| Oval ID: | oval:org.mitre.oval:def:21503 | ||
| Title: | RHSA-2011:0256: dhcp security update (Moderate) | ||
| Description: | The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2011:0256-01 CVE-2011-0413 | Version: | 4 |
| Platform(s): | Red Hat Enterprise Linux 6 | Product(s): | dhcp |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:23094 | |||
| Oval ID: | oval:org.mitre.oval:def:23094 | ||
| Title: | ELSA-2011:0256: dhcp security update (Moderate) | ||
| Description: | The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011:0256-01 CVE-2011-0413 | Version: | 6 |
| Platform(s): | Oracle Linux 6 | Product(s): | dhcp |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:28156 | |||
| Oval ID: | oval:org.mitre.oval:def:28156 | ||
| Title: | DEPRECATED: ELSA-2011-0256 -- dhcp security update (moderate) | ||
| Description: | [12:4.1.1-12.P1.2] - CVE-2011-0413: Unexpected abort caused by a DHCPv6 decline message (#672994) | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011-0256 CVE-2011-0413 | Version: | 4 |
| Platform(s): | Oracle Linux 6 | Product(s): | dhcp |
| Definition Synopsis: | |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-06-05 | Name : RedHat Update for dhcp RHSA-2011:0256-01 File : nvt/gb_RHSA-2011_0256-01_dhcp.nasl |
| 2011-09-12 | Name : Fedora Update for dhcp FEDORA-2011-10705 File : nvt/gb_fedora_2011_10705_dhcp_fc14.nasl |
| 2011-04-21 | Name : Fedora Update for dhcp FEDORA-2011-0848 File : nvt/gb_fedora_2011_0848_dhcp_fc13.nasl |
| 2011-04-19 | Name : Fedora Update for dhcp FEDORA-2011-4897 File : nvt/gb_fedora_2011_4897_dhcp_fc14.nasl |
| 2011-03-09 | Name : Debian Security Advisory DSA 2184-1 (isc-dhcp) File : nvt/deb_2184_1.nasl |
| 2011-03-05 | Name : FreeBSD Ports: isc-dhcp41-server File : nvt/freebsd_isc-dhcp41-server0.nasl |
| 2011-02-11 | Name : Mandriva Update for dhcp MDVSA-2011:022 (dhcp) File : nvt/gb_mandriva_MDVSA_2011_022.nasl |
| 2011-02-04 | Name : Fedora Update for dhcp FEDORA-2011-0862 File : nvt/gb_fedora_2011_0862_dhcp_fc14.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 70680 | ISC DHCP DHCPv6 Message Declined Address Remote DoS ISC DHCP contains a flaw that may allow a remote denial of service. The issue is triggered when an error occurs while processing a previously declined address's DHCPv6 messages, which may be exploited to cause an assertion failure denial of service. |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_3_dhcp-110203.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2011-0256.nasl - Type : ACT_GATHER_INFO |
| 2011-04-19 | Name : The remote Fedora host is missing a security update. File : fedora_2011-0848.nasl - Type : ACT_GATHER_INFO |
| 2011-03-07 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2184.nasl - Type : ACT_GATHER_INFO |
| 2011-02-16 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2011-0256.nasl - Type : ACT_GATHER_INFO |
| 2011-02-08 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2011-022.nasl - Type : ACT_GATHER_INFO |
| 2011-02-02 | Name : The remote Fedora host is missing a security update. File : fedora_2011-0862.nasl - Type : ACT_GATHER_INFO |
| 2011-01-31 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_dc9f83352b3b11e0a91b00e0815b8da8.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:54:20 |
|
