CVE-2020-17437
Vulnerability Scoring
Attack Complexity Details
- Attack Complexity: Low Impact
- Attack Vector: NETWORK
- Privileges Required: None
- Scope: UNCHANGED
- User Interaction: NONE
CIA Impact Definition
- Confidentiality: Low Impact
- Integrity:
- Availability: HIGH IMPACT
CVE-2020-17437 Vulnerability Summary
An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. When the Urgent flag is set in a TCP packet, and the stack is configured to ignore the urgent data, the stack attempts to use the value of the Urgent pointer bytes to separate the Urgent data from the normal data, by calculating the offset at which the normal data should be present in the global buffer. However, the length of this offset is not checked; therefore, for large values of the Urgent pointer bytes, the data pointer can point to memory that is way beyond the data buffer in uip_process in uip.c.
Access Complexity Graph for CVE-2020-17437
Impact Analysis for CVE-2020-17437
CVE-2020-17437: Detailed Information and External References
EPSS
0.00192
EPSS %
0.57231
References
0.00192
- https://cert-portal.siemens.com/productcert/pdf/ssa-541018.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
- https://www.kb.cert.org/vuls/id/815128
CWE
CWE-787
Vulnerable Configurations
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cpe:2.3:a:uip_project:uip:0.5:*:*:*:*:*:*:*
cpe:2.3:a:uip_project:uip:0.5:*:*:*:*:*:*:*
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cpe:2.3:a:uip_project:uip:0.6:*:*:*:*:*:*:*
cpe:2.3:a:uip_project:uip:0.6:*:*:*:*:*:*:*
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cpe:2.3:a:uip_project:uip:0.9:*:*:*:*:*:*:*
cpe:2.3:a:uip_project:uip:0.9:*:*:*:*:*:*:*
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cpe:2.3:a:uip_project:uip:1.0:*:*:*:*:*:*:*
cpe:2.3:a:uip_project:uip:1.0:*:*:*:*:*:*:*
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cpe:2.3:o:contiki-os:contiki:*:*:*:*:*:*:*:*
cpe:2.3:o:contiki-os:contiki:*:*:*:*:*:*:*:*
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cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.873:*:*:*:*:*:*:*
cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.873:*:*:*:*:*:*:*
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cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.874:*:*:*:*:*:*:*
cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.874:*:*:*:*:*:*:*
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cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.875:*:*:*:*:*:*:*
cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.875:*:*:*:*:*:*:*
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cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.876:*:*:*:*:*:*:*
cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.876:*:*:*:*:*:*:*
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cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.877:*:*:*:*:*:*:*
cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.877:*:*:*:*:*:*:*
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cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.878:*:*:*:*:*:*:*
cpe:2.3:a:open-iscsi_project:open-iscsi:2.0.878:*:*:*:*:*:*:*
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cpe:2.3:o:siemens:sentron_3va_com100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_3va_com100_firmware:-:*:*:*:*:*:*:*
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cpe:2.3:h:siemens:sentron_3va_com100:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_3va_com100:-:*:*:*:*:*:*:*
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cpe:2.3:o:siemens:sentron_3va_com800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_3va_com800_firmware:-:*:*:*:*:*:*:*
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cpe:2.3:h:siemens:sentron_3va_com800:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_3va_com800:-:*:*:*:*:*:*:*
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cpe:2.3:o:siemens:sentron_3va_dsp800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_3va_dsp800_firmware:-:*:*:*:*:*:*:*
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cpe:2.3:h:siemens:sentron_3va_dsp800:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_3va_dsp800:-:*:*:*:*:*:*:*
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cpe:2.3:o:siemens:sentron_pac2200_clp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_pac2200_clp_firmware:-:*:*:*:*:*:*:*
-
cpe:2.3:h:siemens:sentron_pac2200_clp:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_pac2200_clp:-:*:*:*:*:*:*:*
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cpe:2.3:o:siemens:sentron_pac2200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_pac2200_firmware:-:*:*:*:*:*:*:*
-
cpe:2.3:h:siemens:sentron_pac2200:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_pac2200:-:*:*:*:*:*:*:*
-
cpe:2.3:o:siemens:sentron_pac3200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_pac3200_firmware:-:*:*:*:*:*:*:*
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cpe:2.3:h:siemens:sentron_pac3200:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_pac3200:-:*:*:*:*:*:*:*
-
cpe:2.3:o:siemens:sentron_pac3200t_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_pac3200t_firmware:-:*:*:*:*:*:*:*
-
cpe:2.3:h:siemens:sentron_pac3200t:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_pac3200t:-:*:*:*:*:*:*:*
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cpe:2.3:o:siemens:sentron_pac3220_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_pac3220_firmware:-:*:*:*:*:*:*:*
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cpe:2.3:h:siemens:sentron_pac3220:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_pac3220:-:*:*:*:*:*:*:*
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cpe:2.3:o:siemens:sentron_pac4200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sentron_pac4200_firmware:-:*:*:*:*:*:*:*
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cpe:2.3:h:siemens:sentron_pac4200:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sentron_pac4200:-:*:*:*:*:*:*:*
CVSS3 Source
nvd@nist.gov
CVSS3 Type
Primary
CVSS3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
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