CVE-2020-15795

 

Published at: - 22-04-2021 11:15

Last modified: - 29-04-2022 03:52

Total changes: - 7

Description

A vulnerability has been identified in Nucleus NET (All versions < V5.2), Nucleus Source Code (Versions including affected DNS modules). The DNS domain name label parsing functionality does not properly validate the names in DNS-responses. The parsing of malformed responses could result in a write past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to execute code in the context of the current process or cause a denial-of-service condition.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://cert-portal.siemens.com/productcert/pdf/ssa-185699.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-103-04

 

Keywords

NVD

 

CVE-2020-15795

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures