CVE-2020-17437

CVE	CVE-2020-17437
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2020-12-11 23:15:00 UTC
Updated	2022-08-08 14:57:00 UTC
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.

Problem Types: CWE-787

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Contiki-os	Contiki	3.0	All	All	All
Operating System	Contiki-os	Contiki	All	All	All	All
Operating System	Contiki-os	Contiki	3.0	All	All	All
Application	Open-iscsi Project	Open-iscsi	All	All	All	All
Application	Open-iscsi Project	Open-iscsi	All	All	All	All
Hardware	Siemens	Sentron 3va Com100	-	All	All	All
Operating System	Siemens	Sentron 3va Com100 Firmware	All	All	All	All
Hardware	Siemens	Sentron 3va Com800	-	All	All	All
Operating System	Siemens	Sentron 3va Com800 Firmware	All	All	All	All
Hardware	Siemens	Sentron 3va Dsp800	-	All	All	All
Operating System	Siemens	Sentron 3va Dsp800 Firmware	All	All	All	All
Hardware	Siemens	Sentron Pac2200	-	All	All	All
Hardware	Siemens	Sentron Pac2200 Clp	-	All	All	All
Operating System	Siemens	Sentron Pac2200 Clp Firmware	-	All	All	All
Operating System	Siemens	Sentron Pac2200 Firmware	All	All	All	All
Hardware	Siemens	Sentron Pac3200	-	All	All	All
Hardware	Siemens	Sentron Pac3200t	-	All	All	All
Operating System	Siemens	Sentron Pac3200t Firmware	All	All	All	All
Operating System	Siemens	Sentron Pac3200 Firmware	All	All	All	All
Hardware	Siemens	Sentron Pac3220	-	All	All	All
Operating System	Siemens	Sentron Pac3220 Firmware	All	All	All	All
Hardware	Siemens	Sentron Pac4200	-	All	All	All
Operating System	Siemens	Sentron Pac4200 Firmware	All	All	All	All
Application	Uip Project	Uip	1.0	All	All	All
Application	Uip Project	Uip	1.0	All	All	All
Application	Uip Project	Uip	All	All	All	All

Reference	Source	Link	Tags
VU#815128 - Embedded TCP/IP stacks have memory corruption vulnerabilities	MISC	www.kb.cert.org	Third Party Advisory, US Government Resource
cert-portal.siemens.com/productcert/pdf/ssa-541018.pdf	CONFIRM	cert-portal.siemens.com
Multiple Embedded TCP/IP Stacks \| CISA	MISC	us-cert.cisa.gov	Third Party Advisory, US Government Resource
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

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