Siemens Nucleus NET/Nucleus RTOS/VSTAR DNS Module null termination

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Siemens Nucleus NET, Nucleus RTOS and VSTAR. Affected by this issue is some unknown functionality of the component DNS Module. This manipulation causes null termination. The identification of this vulnerability is CVE-2020-27736. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Siemens Nucleus NET, Nucleus RTOS and VSTAR (the affected version is unknown). It has been declared as problematic. Affected by this vulnerability is an unknown code of the component DNS Module. The manipulation with an unknown input leads to a null termination vulnerability. The CWE definition for the vulnerability is CWE-170. The product does not terminate or incorrectly terminates a string or array with a null character or equivalent terminator. As an impact it is known to affect availability.

The weakness was shared 04/23/2021 as ssa-669158. It is possible to read the advisory at cert-portal.siemens.com. This vulnerability is known as CVE-2020-27736. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null termination
CWE: CWE-170 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/26/2020 🔍
04/23/2021 +178 days 🔍
04/23/2021 +0 days 🔍
04/27/2021 +4 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-669158
Status: Confirmed

CVE: CVE-2020-27736 (🔍)
GCVE (CVE): GCVE-0-2020-27736
GCVE (VulDB): GCVE-100-173779

Entryinfo

Created: 04/23/2021 08:31
Updated: 04/27/2021 14:24
Changes: 04/23/2021 08:31 (37), 04/27/2021 14:24 (5)
Complete: 🔍
Cache ID: 216::103

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