CVE-2020-17437
8.2 · HIGHOverview
CVE-2020-17437 is a high-severity vulnerability affecting uip_project uip. It was published on December 11, 2020 and has a CVSS 3.1 base score of 8.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from uip_project. Update uip to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| uip_project | uip | 0 | Affected |
| contiki-os | contiki | 0 | Affected |
| open-iscsi_project | open-iscsi | 0 | Affected |
| siemens | sentron_3va_com100_firmware | >= 0, < 4.4.1 | Affected |
| siemens | sentron_3va_com800_firmware | >= 0, < 4.4.1 | Affected |
| siemens | sentron_3va_dsp800_firmware | >= 0, < 4.0 | Affected |
| siemens | sentron_pac2200_firmware | >= 0, < 3.2.2 | Affected |
| siemens | sentron_pac3200_firmware | >= 0, < 2.4.7 | Affected |
| siemens | sentron_pac3200t_firmware | >= 0, < 3.2.2 | Affected |
| siemens | sentron_pac3220_firmware | >= 0, < 3.2.0 | Affected |
| siemens | sentron_pac4200_firmware | >= 0, < 2.3.0 | Affected |
References
Frequently Asked Questions
What is CVE-2020-17437?
CVE-2020-17437 is a high-severity vulnerability affecting uip_project uip. It was published on December 11, 2020 and has a CVSS 3.1 base score of 8.2 (HIGH).
How severe is CVE-2020-17437?
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-17437?
Check the references section for vendor advisories and patches from uip_project. Update uip to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-17437?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-17437 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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