UBUNTU-CVE-2020-25645
A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.
02 / AFFECTED SOFTWARE
Affected packages
86 explicit affected versions
49 explicit affected versions
6 explicit affected versions
6 explicit affected versions
52 explicit affected versions
16 explicit affected versions
33 explicit affected versions
6 explicit affected versions
61 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
7 explicit affected versions
9 explicit affected versions
1 explicit affected versions
17 explicit affected versions
23 explicit affected versions
54 explicit affected versions
16 explicit affected versions
9 explicit affected versions
10 explicit affected versions
32 explicit affected versions
3 explicit affected versions
53 explicit affected versions
31 explicit affected versions
1 explicit affected versions
1 explicit affected versions
25 explicit affected versions
13 explicit affected versions
48 explicit affected versions
1 explicit affected versions
19 explicit affected versions
28 explicit affected versions
10 explicit affected versions
11 explicit affected versions
88 explicit affected versions
17 explicit affected versions
2 explicit affected versions
51 explicit affected versions
11 explicit affected versions
56 explicit affected versions
1 explicit affected versions
118 explicit affected versions
9 explicit affected versions
64 explicit affected versions
1 explicit affected versions
11 explicit affected versions
7 explicit affected versions
1 explicit affected versions
7 explicit affected versions
1 explicit affected versions
9 explicit affected versions
75 explicit affected versions
7 explicit affected versions
33 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
38 explicit affected versions
9 explicit affected versions
96 explicit affected versions
7 explicit affected versions
79 explicit affected versions
31 explicit affected versions
41 explicit affected versions
2 explicit affected versions
6 explicit affected versions
43 explicit affected versions
1 explicit affected versions
12 explicit affected versions
11 explicit affected versions
4 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/34beb21594519ce64a55a498c2fe7d567bc1ca20
- https://ubuntu.com/security/CVE-2020-25645
- https://ubuntu.com/security/notices/USN-4657-1
- https://ubuntu.com/security/notices/USN-4658-1
- https://ubuntu.com/security/notices/USN-4660-1
- https://ubuntu.com/security/notices/USN-4912-1
- https://www.cve.org/CVERecord?id=CVE-2020-25645