LOW
An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal errors (related to state transitions) in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic, a different vulnerability than CVE-2019-9500, CVE-2019-9501, CVE-2019-9502, and CVE-2019-9503.
http://packetstormsecurity.com/files/156809/Broadcom-Wi-Fi-KR00K-Proof-Of-Concept.html
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-003.txt
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200527-01-wifi-en
http://www.huawei.com/en/psirt/security-notices/huawei-sn-20200228-01-kr00k-en
https://cert-portal.siemens.com/productcert/pdf/ssa-712518.pdf
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0001
https://support.apple.com/kb/HT210721
https://support.apple.com/kb/HT210722
https://support.apple.com/kb/HT210788
https://us-cert.cisa.gov/ics/advisories/icsa-20-224-05
https://www.mist.com/documentation/mist-security-advisory-kr00k-attack-faq/
https://www.synology.com/security/advisory/Synology_SA_20_03
Source: MITRE
Published: 2020-02-05
Updated: 2020-08-11
Type: CWE-367
Base Score: 2.9
Vector: AV:A/AC:M/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 5.5
Severity: LOW
Base Score: 3.1
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Impact Score: 1.4
Exploitability Score: 1.6
Severity: LOW