An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.
References
Link | Resource |
---|---|
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 | Third Party Advisory US Government Resource |
https://www.kb.cert.org/vuls/id/815128 | Third Party Advisory US Government Resource |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2020-12-11T22:25:49
Updated: 2020-12-11T22:25:49
Reserved: 2020-08-07T00:00:00
Link: CVE-2020-17438
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-12-11T23:15:12.747
Modified: 2020-12-15T16:34:08.703
Link: CVE-2020-17438
JSON object: View
Redhat Information
No data.
CWE