ldns 1.7.0 str2host.c double free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in ldns 1.7.0. This affects an unknown function of the file str2host.c. Such manipulation leads to double free. This vulnerability is traded as CVE-2017-1000232. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in ldns 1.7.0 and classified as critical. Affected by this issue is an unknown function of the file str2host.c. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A double-free vulnerability in str2host.c in ldns 1.7.0 have unspecified impact and attack vectors.

The bug was discovered 04/27/2015. The weakness was shared 11/17/2017 (Website). The advisory is available at nlnetlabs.nl. This vulnerability is handled as CVE-2017-1000232 since 11/16/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 934 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104784 (Ubuntu 14.04 LTS / 16.04 LTS / 17.04 / 17.10 : ldns vulnerabilities (USN-3491-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196981 (Ubuntu Security Notification for Ldns Vulnerabilities (USN-3491-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104784) and SecurityFocus (BID 67200†). The entries VDB-72881 and VDB-109633 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104784
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 17.04 / 17.10 : ldns vulnerabilities (USN-3491-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 65105
OpenVAS Name: Ubuntu Update for ldns USN-3491-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

05/03/2014 🔍
04/27/2015 +359 days 🔍
11/16/2017 +934 days 🔍
11/16/2017 +0 days 🔍
11/17/2017 +1 days 🔍
11/18/2017 +1 days 🔍
11/22/2017 +4 days 🔍
11/27/2017 +5 days 🔍
01/10/2023 +1870 days 🔍

Sourcesinfo

Advisory: USN-3491-1
Researcher: Leon Weber
Status: Confirmed

CVE: CVE-2017-1000232 (🔍)
GCVE (CVE): GCVE-0-2017-1000232
GCVE (VulDB): GCVE-100-109634
SecurityFocus: 67200 - ldns CVE-2014-3209 Local Insecure File Permissions Vulnerability

See also: 🔍

Entryinfo

Created: 11/18/2017 08:53
Updated: 01/10/2023 19:11
Changes: 11/18/2017 08:53 (73), 12/08/2019 09:53 (5), 01/24/2021 11:33 (2), 01/10/2023 19:11 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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