UBUNTU-CVE-2020-26139
An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
6 explicit affected versions
57 explicit affected versions
1 explicit affected versions
191 explicit affected versions
67 explicit affected versions
27 explicit affected versions
47 explicit affected versions
20 explicit affected versions
77 explicit affected versions
1 explicit affected versions
23 explicit affected versions
71 explicit affected versions
1 explicit affected versions
1 explicit affected versions
19 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
29 explicit affected versions
37 explicit affected versions
29 explicit affected versions
22 explicit affected versions
10 explicit affected versions
137 explicit affected versions
14 explicit affected versions
70 explicit affected versions
44 explicit affected versions
1 explicit affected versions
13 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
61 explicit affected versions
1 explicit affected versions
32 explicit affected versions
33 explicit affected versions
10 explicit affected versions
46 explicit affected versions
11 explicit affected versions
69 explicit affected versions
1 explicit affected versions
29 explicit affected versions
2 explicit affected versions
64 explicit affected versions
25 explicit affected versions
1 explicit affected versions
9 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
26 explicit affected versions
1 explicit affected versions
19 explicit affected versions
1 explicit affected versions
20 explicit affected versions
1 explicit affected versions
23 explicit affected versions
9 explicit affected versions
18 explicit affected versions
44 explicit affected versions
16 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
114 explicit affected versions
19 explicit affected versions
49 explicit affected versions
3 explicit affected versions
77 explicit affected versions
54 explicit affected versions
1 explicit affected versions
13 explicit affected versions
45 explicit affected versions
19 explicit affected versions
43 explicit affected versions
1 explicit affected versions
92 explicit affected versions
92 explicit affected versions
12 explicit affected versions
22 explicit affected versions
4 explicit affected versions
9 explicit affected versions
1 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients.
05 / REFERENCES
Further evidence
- https://papers.mathyvanhoef.com/usenix2021.pdf
- https://ubuntu.com/security/CVE-2020-26139
- https://ubuntu.com/security/notices/USN-4997-1
- https://ubuntu.com/security/notices/USN-4997-2
- https://ubuntu.com/security/notices/USN-4999-1
- https://ubuntu.com/security/notices/USN-5000-1
- https://ubuntu.com/security/notices/USN-5000-2
- https://ubuntu.com/security/notices/USN-5001-1
- https://ubuntu.com/security/notices/USN-5018-1
- https://ubuntu.com/security/notices/USN-5343-1
- https://www.cve.org/CVERecord?id=CVE-2020-26139