Executive Summary
| Summary | |
|---|---|
| Title | unbound security update |
| Informations | |||
|---|---|---|---|
| Name | DSA-2370 | First vendor Publication | 2011-12-22 |
| Vendor | Debian | Last vendor Modification | 2011-12-22 |
| Severity (Vendor) | N/A | Revision | 1 |
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
| It was discovered that Unbound, a recursive DNS resolver, would crash when processing certain malformed DNS responses from authoritative DNS servers, leading to denial of service. CVE-2011-4528 Unbound attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone. CVE-2011-4869 Unbound does not properly process malformed responses which lack expected NSEC3 records. For the oldstable distribution (lenny), these problems have been fixed in version 1.4.6-1~lenny2. For the stable distribution (squeeze), these problems have been fixed in version 1.4.6-1+squeeze2. For the testing distribution (wheezy) and the unstable distribution (sid), these problems have been fixed in version 1.4.14-1. We recommend that you upgrade your unbound packages. |
Original Source
| Url : http://www.debian.org/security/2011/dsa-2370 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-399 | Resource Management Errors |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:15048 | |||
| Oval ID: | oval:org.mitre.oval:def:15048 | ||
| Title: | DSA-2370-1 unbound -- several | ||
| Description: | It was discovered that Unbound, a recursive DNS resolver, would crash when processing certain malformed DNS responses from authoritative DNS servers, leading to denial of service. CVE-2011-4528 Unbound attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone. CVE-2011-4869 Unbound does not properly process malformed responses which lack expected NSEC3 records. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2370-1 CVE-2011-4528 CVE-2011-4869 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 5.0 Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | unbound |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-04-02 | Name : Fedora Update for unbound FEDORA-2011-17282 File : nvt/gb_fedora_2011_17282_unbound_fc16.nasl |
| 2012-02-11 | Name : Debian Security Advisory DSA 2370-1 (unbound) File : nvt/deb_2370_1.nasl |
| 2012-01-09 | Name : Fedora Update for unbound FEDORA-2011-17337 File : nvt/gb_fedora_2011_17337_unbound_fc15.nasl |
| 2011-12-20 | Name : Unbound Multiple Denial of Service Vulnerabilities File : nvt/gb_unbound_51115.nasl |
| 0000-00-00 | Name : FreeBSD Ports: unbound File : nvt/freebsd_unbound0.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 77910 | Unbound NSEC3-Signed Zones Response Parsing Remote DoS |
| 77909 | Unbound Duplicate Resource Record Parsing Remote DoS |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2013-11-29 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201311-18.nasl - Type : ACT_GATHER_INFO |
| 2012-01-17 | Name : The remote name server is affected by multiple denial of service vulnerabilit... File : unbound_1_4_14.nasl - Type : ACT_GATHER_INFO |
| 2012-01-12 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2370.nasl - Type : ACT_GATHER_INFO |
| 2012-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2011-17282.nasl - Type : ACT_GATHER_INFO |
| 2012-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2011-17337.nasl - Type : ACT_GATHER_INFO |
| 2011-12-20 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_7ba65bfd2a4011e1b96e00215af774f0.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:30:40 |
|
