CVE-2019-16275 Information

Description

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range.

CVSS Vector

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

Reference

http://www.openwall.com/lists/oss-security/2019/09/12/6 https://lists.debian.org/debian-lts-announce/2019/09/msg00017.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36G4XAZ644DMHBLKOL4FDSPZVIGNQY6U/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B7NCLOPTZNRRNYODH22BFIDH6YIQWLJD/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FEGITWRTIWABW54ANEPCEF4ARZLXGSK5/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HY6STGJIIROVNIU6VMB2WTN2Q5M65WF4/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PBJXUKV6XMSELWNXPS37CSUIH5EUHFXQ/ https://seclists.org/bugtraq/2019/Sep/56 https://usn.ubuntu.com/4136-1/ https://usn.ubuntu.com/4136-2/ https://w1.fi/security/2019-7/ https://w1.fi/security/2019-7/ap-mode-pmf-disconnection-protection-bypass.txt https://www.debian.org/security/2019/dsa-4538 https://www.openwall.com/lists/oss-security/2019/09/11/7

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5