UBUNTU-CVE-2022-32296
The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.
02 / AFFECTED SOFTWARE
Affected packages
3 explicit affected versions
8 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
16 explicit affected versions
57 explicit affected versions
1 explicit affected versions
25 explicit affected versions
12 explicit affected versions
4 explicit affected versions
9 explicit affected versions
191 explicit affected versions
89 explicit affected versions
10 explicit affected versions
51 explicit affected versions
69 explicit affected versions
41 explicit affected versions
20 explicit affected versions
2 explicit affected versions
102 explicit affected versions
13 explicit affected versions
4 explicit affected versions
121 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
9 explicit affected versions
7 explicit affected versions
12 explicit affected versions
2 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
56 explicit affected versions
15 explicit affected versions
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12 explicit affected versions
54 explicit affected versions
120 explicit affected versions
44 explicit affected versions
10 explicit affected versions
37 explicit affected versions
66 explicit affected versions
1 explicit affected versions
1 explicit affected versions
26 explicit affected versions
13 explicit affected versions
144 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
83 explicit affected versions
13 explicit affected versions
1 explicit affected versions
12 explicit affected versions
56 explicit affected versions
33 explicit affected versions
15 explicit affected versions
10 explicit affected versions
188 explicit affected versions
68 explicit affected versions
11 explicit affected versions
12 explicit affected versions
91 explicit affected versions
7 explicit affected versions
54 explicit affected versions
2 explicit affected versions
3 explicit affected versions
1 explicit affected versions
10 explicit affected versions
86 explicit affected versions
165 explicit affected versions
52 explicit affected versions
3 explicit affected versions
16 explicit affected versions
13 explicit affected versions
4 explicit affected versions
1 explicit affected versions
22 explicit affected versions
33 explicit affected versions
45 explicit affected versions
12 explicit affected versions
3 explicit affected versions
1 explicit affected versions
1 explicit affected versions
49 explicit affected versions
5 explicit affected versions
46 explicit affected versions
1 explicit affected versions
43 explicit affected versions
13 explicit affected versions
11 explicit affected versions
45 explicit affected versions
5 explicit affected versions
10 explicit affected versions
12 explicit affected versions
40 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
37 explicit affected versions
38 explicit affected versions
4 explicit affected versions
9 explicit affected versions
3 explicit affected versions
11 explicit affected versions
44 explicit affected versions
97 explicit affected versions
21 explicit affected versions
99 explicit affected versions
76 explicit affected versions
4 explicit affected versions
32 explicit affected versions
8 explicit affected versions
67 explicit affected versions
44 explicit affected versions
43 explicit affected versions
11 explicit affected versions
117 explicit affected versions
44 explicit affected versions
4 explicit affected versions
33 explicit affected versions
1 explicit affected versions
23 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.
05 / REFERENCES
Further evidence
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5
- https://git.kernel.org/linus/4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5
- https://lore.kernel.org/lkml/[email protected]/T/
- https://ubuntu.com/security/CVE-2022-32296
- https://ubuntu.com/security/notices/USN-5616-1
- https://ubuntu.com/security/notices/USN-5622-1
- https://ubuntu.com/security/notices/USN-5623-1
- https://ubuntu.com/security/notices/USN-5630-1
- https://ubuntu.com/security/notices/USN-5639-1
- https://ubuntu.com/security/notices/USN-5647-1
- https://ubuntu.com/security/notices/USN-5654-1
- https://ubuntu.com/security/notices/USN-5660-1
- https://ubuntu.com/security/notices/USN-5669-1
- https://ubuntu.com/security/notices/USN-5669-2
- https://ubuntu.com/security/notices/USN-5678-1
- https://ubuntu.com/security/notices/USN-5679-1
- https://ubuntu.com/security/notices/USN-5684-1
- https://ubuntu.com/security/notices/USN-5687-1
- https://ubuntu.com/security/notices/USN-5695-1
- https://www.cve.org/CVERecord?id=CVE-2022-32296