CVE-2021-31889

Summary

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0). Malformed TCP packets with a corrupted SACK option leads to Information Leaks and Denial-of-Service conditions. (FSMD-2021-0015)

Affected Software

VendorProductVersion RangeStatus
SiemensCapital Embedded AR Classic 431-4220 < *affected
SiemensCapital Embedded AR Classic R20-110 < V2303affected
SiemensPLUSCONTROL 1st GenAll versionsaffected
SiemensSIMOTICS CONNECT 400All versions < V0.5.0.0affected

Weaknesses

  • CWE-191: CWE-191: Integer Underflow (Wrap or Wraparound)

ADP Enrichment

CVE Program Container

Additional References

References