MaraDNS 1.4.03/1.4.05 dns/Compress.c compress_add_dlabel_points memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in MaraDNS 1.4.03/1.4.05. Impacted is the function compress_add_dlabel_points of the file dns/Compress.c. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2011-0520. There is no available exploit.

Detailsinfo

A vulnerability was found in MaraDNS 1.4.03/1.4.05. It has been declared as critical. This vulnerability affects the function compress_add_dlabel_points of the file dns/Compress.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long DNS hostname with a large number of labels, which triggers a heap-based buffer overflow.

The weakness was presented 01/23/2011 (Website). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2011-0520 since 01/20/2011. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 73481 (MaraDNS < 1.3.07.11 / 1.4.x < 1.4.06 / 2.0.x < 2.0.02 compress_add_dlabel_points Function Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family DNS.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (64885), Tenable (73481), SecurityFocus (BID 45966†), OSVDB (70630†) and Secunia (SA43027†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73481
Nessus Name: MaraDNS < 1.3.07.11 / 1.4.x < 1.4.06 / 2.0.x < 2.0.02 compress_add_dlabel_points Function Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 69332
OpenVAS Name: Debian Security Advisory DSA 2196-1 (maradns)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/20/2011 🔍
01/23/2011 +3 days 🔍
01/24/2011 +1 days 🔍
01/24/2011 +0 days 🔍
01/24/2011 +0 days 🔍
01/28/2011 +3 days 🔍
01/28/2011 +0 days 🔍
02/07/2011 +10 days 🔍
04/11/2014 +1159 days 🔍
03/20/2015 +343 days 🔍
10/13/2021 +2399 days 🔍

Sourcesinfo

Advisory: dsa-2196
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-0520 (🔍)
GCVE (CVE): GCVE-0-2011-0520
GCVE (VulDB): GCVE-100-56248

OVAL: 🔍

X-Force: 64885
SecurityFocus: 45966 - MaraDNS 'compress_add_dlabel_points()' Heap Buffer Overflow Vulnerability
Secunia: 43027 - MaraDNS "compress_add_dlabel_points()" Buffer Overflow Vulnerability, Highly Critical
OSVDB: 70630 - MaraDNS dns/Compress.c compress_add_dlabel_points() Function Remote Overflow DoS
Vulnerability Center: 29579 - MaraDNS 1.4.03 and 1.4.05 Remote DoS or Code Execution Vulnerability via a Long DNS Hostname, High
Vupen: ADV-2011-0699

Entryinfo

Created: 03/20/2015 16:16
Updated: 10/13/2021 09:43
Changes: 03/20/2015 16:16 (61), 08/20/2017 22:07 (15), 10/13/2021 09:36 (3), 10/13/2021 09:38 (1), 10/13/2021 09:43 (1)
Complete: 🔍
Cache ID: 216::103

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