JFrog Security Research

XRAY-194052 - NicheStack ICMP payload OOB-R

CVE-2020-35683 | CVSS 7.5

JFrog Severity:high

Published 4 Aug. 2021 | Last updated 4 Aug. 2021

NicheStack ICMP IP payload size read out of bounds

InterNiche TCP/IP stack

InterNiche (, 4.3), fixed in 4.3

NicheStack code that parses ICMP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the ICMP checksum. When the IP payload size is set to be smaller than the size of the IP header, the ICMP checksum computation function may read out of bounds

No PoC is supplied for this issue

No vulnerability mitigations are supplied for this issue

(JFrog) INFRA:HALT New Vulnerabilities Impacting OT and Critical Infrastructure

NVD