9.1

CVE-2020-17441

An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in either Denial-of-Service or Information Disclosure. This affects pico_ipv6_extension_headers and pico_checksum_adder (in pico_ipv6.c and pico_frame.c).

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Altran ≫ Picotcp Version <= 1.7.0
Microchip ≫ Mplab Harmony Version >= 3.0.0 < 3.7.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.74% 0.705
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.1 3.9 5.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
nvd@nist.gov 6.4 10 4.9
AV:N/AC:L/Au:N/C:P/I:N/A:P
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

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