CVE-2020-17438 — Out-of-bounds Write in Project UIP
Severity
9.8CRITICALNVD
EPSS
0.8%
top 25.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 11
Latest updateMay 24
Description
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 stor…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9