CVE-2021-20988

HIGH

8.6

Description

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.

CVE Details

CVSS v3.1 Score8.6

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/13/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

hilscher:rcx_rtospepperl-fuchs:ice1-16di-g60l-v1dpepperl-fuchs:ice1-16di-g60l-v1d_firmwarepepperl-fuchs:ice1-16dio-g60l-c1-v1dpepperl-fuchs:ice1-16dio-g60l-c1-v1d_firmwarepepperl-fuchs:ice1-16dio-g60l-v1dpepperl-fuchs:ice1-16dio-g60l-v1d_firmwarepepperl-fuchs:ice1-8di8do-g60l-c1-v1dpepperl-fuchs:ice1-8di8do-g60l-c1-v1d_firmwarepepperl-fuchs:ice1-8di8do-g60l-v1dpepperl-fuchs:ice1-8di8do-g60l-v1d_firmwarepepperl-fuchs:ice1-8iol-g30l-v1dpepperl-fuchs:ice1-8iol-g30l-v1d_firmwarepepperl-fuchs:ice1-8iol-g60l-v1dpepperl-fuchs:ice1-8iol-g60l-v1d_firmwarepepperl-fuchs:ice1-8iol-s2-g60l-v1dpepperl-fuchs:ice1-8iol-s2-g60l-v1d_firmware

Weaknesses (CWE)

CWE-119CWE-119

References

https://cert.vde.com/de-de/advisories/vde-2021-018(info@cert.vde.com)

https://kb.hilscher.com/display/ISMS/2019-04-10+Wrong+handling+of+the+UDP+checksum(info@cert.vde.com)

https://cert.vde.com/de-de/advisories/vde-2021-018(af854a3a-2127-422b-91ae-364da2661108)

https://kb.hilscher.com/display/ISMS/2019-04-10+Wrong+handling+of+the+UDP+checksum(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.