CVE-2021-25664

Summary

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 Software

VendorProductVersion RangeStatus
SiemensCapital Embedded AR Classic 431-4220 < *affected
SiemensCapital Embedded AR Classic R20-110 < V2303affected
SiemensNucleus NETAll versionsaffected
SiemensNucleus ReadyStart V30 < V2017.02.4affected
SiemensNucleus ReadyStart V40 < V4.1.0affected
SiemensNucleus Source Code0 < *affected

Weaknesses

  • CWE-835: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

ADP Enrichment

CVE Program Container

Additional References

References