7.5
High
CVE-2021-25663 A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic…
Description
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Capital Embedded AR Classic 431-422 | Versions not published | |
| Capital Embedded AR Classic R20-11 2303 | earliest → < 2303 | 2303 |
| Nucleus NET | Versions not published | |
| Nucleus ReadyStart V3 2017.02 | earliest → < 2017.02.4 | 2017.02.4 |
| Nucleus ReadyStart V4 4.1 | earliest → < 4.1.0 | 4.1.0 |
| Nucleus Source Code | Versions not published |
References
- cert-portal.siemens.com cert-portal.siemens.com
- us-cert.cisa.gov us-cert.cisa.gov
- cert-portal.siemens.com cert-portal.siemens.com
Timeline
- Published
- Last modified
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CVE-2021-31890
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CVE-2021-31889
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CVE-2021-31883
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7.1
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