ISC BIND up to 9.9.1-P2 Assertion Error Resource Record Parser RDATA Query denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in ISC BIND up to 9.9.1-P2. This vulnerability affects unknown code of the component Assertion Error Resource Record Parser. This manipulation as part of RDATA Query causes denial of service. This vulnerability is registered as CVE-2012-4244. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in ISC BIND up to 9.9.1-P2 (Domain Name Software) and classified as critical. Affected by this vulnerability is some unknown functionality of the component Assertion Error Resource Record Parser. The manipulation as part of a RDATA Query leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

ISC BIND 9.x before 9.7.6-P3, 9.8.x before 9.8.3-P3, 9.9.x before 9.9.1-P3, and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P3 allows remote attackers to cause a denial of service (assertion failure and named daemon exit) via a query for a long resource record.

The weakness was published 09/12/2012 as not defined advisory (Website). It is possible to read the advisory at kb.isc.org. This vulnerability is known as CVE-2012-4244 since 08/10/2012. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK. The RDATA query has to be greater than 65535 bytes.

The vulnerability scanner Nessus provides a plugin with the ID 68625 (Oracle Linux 6 : bind (ELSA-2012-1268)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185064 (HP-UX Running BIND Remote Denial of Service Vulnerability (HPSBUX02823)).

Upgrading eliminates this vulnerability. The upgrade is hosted for download at isc.org.Proper firewalling of udp/53 (dns) is able to address this issue. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (68625), SecurityFocus (BID 55522†), OSVDB (85417†), Secunia (SA50560†) and Vulnerability Center (SBV-36127†). Additional details are provided at debian.org. Similar entries are available at VDB-5483 and VDB-5874. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 68625
Nessus Name: Oracle Linux 6 : bind (ELSA-2012-1268)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 72176
OpenVAS Name: Debian Security Advisory DSA 2547-1 (bind9)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: isc.org
Firewalling: 🔍
ISS Proventia IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

08/10/2012 🔍
09/12/2012 +33 days 🔍
09/12/2012 +0 days 🔍
09/12/2012 +0 days 🔍
09/12/2012 +0 days 🔍
09/13/2012 +1 days 🔍
09/13/2012 +0 days 🔍
09/13/2012 +0 days 🔍
09/14/2012 +1 days 🔍
09/17/2012 +3 days 🔍
07/12/2013 +298 days 🔍
04/13/2021 +2832 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: kb.isc.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-4244 (🔍)
GCVE (CVE): GCVE-0-2012-4244
GCVE (VulDB): GCVE-100-6295

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 55522 - ISC BIND 9 DNS Resource Records Handling CVE-2012-4244 Remote Denial of Service Vulnerability
Secunia: 50560 - Debian update for bind9, Moderately Critical
OSVDB: 85417
Vulnerability Center: 36127 - ISC BIND <9.9.1-P3 Remote Denial of Service and Information Leakage via a Crafted Resource Record, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/17/2012 15:56
Updated: 04/13/2021 07:17
Changes: 09/17/2012 15:56 (82), 04/19/2017 10:30 (12), 04/13/2021 07:17 (2)
Complete: 🔍
Cache ID: 216::103

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