CVE-2021-20988

EUVD-2021-8397
In Hilscher rcX RTOS versions prios to V2.1.14.1 the actual UDP packet length is not verified against the length indicated by the packet. This may lead to a denial of service of the affected device.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CERTVDECNA
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 50%
Affected Products (NVD)
VendorProductVersion
hilscherrcx_rtos
𝑥
< 2.1.14.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://cert.vde.com/de-de/advisories/vde-2021-018
https://kb.hilscher.com/display/ISMS/2019-04-10+Wrong+handling+of+the+UDP+checksum
https://cert.vde.com/de-de/advisories/vde-2021-018
https://kb.hilscher.com/display/ISMS/2019-04-10+Wrong+handling+of+the+UDP+checksum