CVE-2021-25664

CVSS 8.7 HIGHEPSS 1.9%CWE-835

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 8.7EPSS 1.9%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

22 abr 2021Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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.

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

Produtos afetados

Siemens · Capital Embedded AR Classic 431-422 Siemens · Capital Embedded AR Classic R20-11 Siemens · Nucleus NET Siemens · Nucleus ReadyStart V3 Siemens · Nucleus ReadyStart V4 Siemens · Nucleus Source Code

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Referências

https://cert-portal.siemens.com/productcert/html/ssa-248289.html https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05