VDB-112241 · CVE-2017-12130 · BID 102795

tinysvcmdns Library 2017-11-05 DNS Query null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in tinysvcmdns Library 2017-11-05 and classified as problematic. This affects an unknown function of the component DNS Query Handler. The manipulation leads to null pointer dereference. This vulnerability is documented as CVE-2017-12130. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in tinysvcmdns Library 2017-11-05 (Software Library). This issue affects an unknown part of the component DNS Query Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

An exploitable NULL pointer dereference vulnerability exists in the tinysvcmdns library version 2017-11-05. A specially crafted packet can make the library dereference a NULL pointer leading to a server crash and denial of service. An attacker needs to send a DNS query to trigger this vulnerability.

The bug was discovered 01/17/2018. The weakness was released 01/20/2018 by Aleksandar Nikolic with Cisco Talos (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2017-12130 since 07/31/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k.

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 vulnerability database at SecurityFocus (BID 102795†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/31/2017 🔍
01/17/2018 +170 days 🔍
01/17/2018 +0 days 🔍
01/19/2018 +2 days 🔍
01/20/2018 +1 days 🔍
01/20/2018 +0 days 🔍
02/02/2023 +1839 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Aleksandar Nikolic
Organization: Cisco Talos
Status: Not defined

CVE: CVE-2017-12130 (🔍)
GCVE (CVE): GCVE-0-2017-12130
GCVE (VulDB): GCVE-100-112241
SecurityFocus: 102795 - Tinysvcmdns CVE-2017-12130 Remote Denial of Service Vulnerability

Entryinfo

Created: 01/20/2018 13:28
Updated: 02/02/2023 09:31
Changes: 01/20/2018 13:28 (58), 12/25/2019 11:16 (5), 02/02/2023 09:31 (14)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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