CVE-2021-25664

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

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

Last modified: - 01-05-2022 03:18

Total changes: - 5

Description

A vulnerability has been identified in Capital VSTAR (Versions including affected IPv6 stack), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected IPv6 stack). The function that processes the Hop-by-Hop extension header in IPv6 packets and its options lacks any checks against the length field of the header, allowing attackers to put the function into an infinite loop by supplying arbitrary length values.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Network

Attack vector

High

Availability

None

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

7.5

Base score

3.9

3.6

Exploitability score

Impact score

Verification logic

vendor=siemens AND product=capital_vstar AND version=-

vendor=siemens AND product=nucleus_net AND version=-

vendor=siemens AND product=nucleus_readystart_v3 AND versionEndExcluding=2017.02.4

vendor=siemens AND product=nucleus_readystart_v4 AND versionEndExcluding=4.1.0

vendor=siemens AND product=nucleus_source_code AND version=-

Reference

Keywords

CVE-2021-25664

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-25664

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures