CVE-2020-13987 — HIGH (7.5)

Q: How severe is CVE-2020-13987?

CVE-2020-13987 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2020-13987?

Check the references section above for vendor advisories and patch information. Affected products include: Uip Project Uip, Contiki-Os Contiki, Open-Iscsi Project Open-Iscsi, Siemens Sentron 3Va Com100 Firmware, Siemens Sentron 3Va Com100.

Vulnerability Description

An issue was discovered in Contiki through 3.0. An Out-of-Bounds Read vulnerability exists in the uIP TCP/IP Stack component when calculating the checksums for IP packets in upper_layer_chksum in net/ipv4/uip.c.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Uip Project	Uip	<= 1.0
Contiki-Os	Contiki	<= 3.0
Open-Iscsi Project	Open-Iscsi	<= 2.1.12
Siemens	Sentron 3Va Com100 Firmware	< 4.4.1
Siemens	Sentron 3Va Com100	-
Siemens	Sentron 3Va Com800 Firmware	< 4.4.1
Siemens	Sentron 3Va Com800	-
Siemens	Sentron Pac3200 Firmware	< 2.4.7
Siemens	Sentron Pac3200	-
Siemens	Sentron Pac4200 Firmware	< 2.3.0
Siemens	Sentron Pac4200	-

Related Weaknesses (CWE)

CWE-125

References

https://cert-portal.siemens.com/productcert/pdf/ssa-541018.pdfPatchThird Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/815128Third Party AdvisoryUS Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-541018.pdfPatchThird Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01Third Party AdvisoryUS Government Resource
https://www.kb.cert.org/vuls/id/815128Third Party AdvisoryUS Government Resource

FAQ

What is CVE-2020-13987?

CVE-2020-13987 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in Contiki through 3.0. An Out-of-Bounds Read vulnerability exists in the uIP TCP/IP Stack component when calculating the checksums for IP packets in upper_layer_chksum in net/...

How severe is CVE-2020-13987?

CVE-2020-13987 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-13987?

Check the references section above for vendor advisories and patch information. Affected products include: Uip Project Uip, Contiki-Os Contiki, Open-Iscsi Project Open-Iscsi, Siemens Sentron 3Va Com100 Firmware, Siemens Sentron 3Va Com100.