CVE-2021-25664

published 2021-04-22

CVE-2021-25664: A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus…

high 8.7 CVSS 4.0

AV N AC L AT N PR N UI N VC N VI N VA H SC N SI N SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (All 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.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
siemens	capital_embedded_ar_classic_431-422	< *	*
siemens	capital_embedded_ar_classic_r20-11	< V2303	V2303
siemens	nucleus_net	—	—
siemens	nucleus_readystart_v3	< V2017.02.4	V2017.02.4
siemens	nucleus_readystart_v3	< 2017.02.4	2017.02.4
siemens	nucleus_readystart_v4	< V4.1.0	V4.1.0
siemens	nucleus_readystart_v4	< 4.1.0	4.1.0
siemens	nucleus_source_code	< *	*

CWE-835