CVE-2021-25663
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
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 IPv6 headers does not check the lengths of extension header options, allowing attackers to put this function into an infinite loop with crafted length values.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Siemens | Capital Embedded AR Classic 431-422 | 0 < * | affected |
| Siemens | Capital Embedded AR Classic R20-11 | 0 < V2303 | affected |
| Siemens | Nucleus NET | All versions | affected |
| Siemens | Nucleus ReadyStart V3 | 0 < V2017.02.4 | affected |
| Siemens | Nucleus ReadyStart V4 | 0 < V4.1.0 | affected |
| Siemens | Nucleus Source Code | 0 < * | affected |
Weaknesses
- CWE-835: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
ADP Enrichment
CVE Program Container
Additional References
- https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05
- https://cert-portal.siemens.com/productcert/html/ssa-248289.html
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05
- https://cert-portal.siemens.com/productcert/html/ssa-248289.html
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