UBUNTU-CVE-2019-10638
In the Linux kernel before 5.1.7, a device can be tracked by an attacker using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic is sent to multiple destination IP addresses, it is possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack may be conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses.
02 / AFFECTED SOFTWARE
Affected packages
66 explicit affected versions
24 explicit affected versions
4 explicit affected versions
57 explicit affected versions
191 explicit affected versions
29 explicit affected versions
11 explicit affected versions
1 explicit affected versions
34 explicit affected versions
1 explicit affected versions
1 explicit affected versions
12 explicit affected versions
1 explicit affected versions
34 explicit affected versions
2 explicit affected versions
10 explicit affected versions
11 explicit affected versions
34 explicit affected versions
10 explicit affected versions
28 explicit affected versions
1 explicit affected versions
7 explicit affected versions
23 explicit affected versions
11 explicit affected versions
68 explicit affected versions
2 explicit affected versions
30 explicit affected versions
35 explicit affected versions
96 explicit affected versions
51 explicit affected versions
42 explicit affected versions
1 explicit affected versions
1 explicit affected versions
55 explicit affected versions
12 explicit affected versions
32 explicit affected versions
26 explicit affected versions
27 explicit affected versions
75 explicit affected versions
55 explicit affected versions
10 explicit affected versions
21 explicit affected versions
13 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel before 5.1.7, a device can be tracked by an attacker using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic is sent to multiple destination IP addresses, it is possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack may be conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses.
05 / REFERENCES
Further evidence
- https://arxiv.org/pdf/1906.10478.pdf
- https://ubuntu.com/security/CVE-2019-10638
- https://ubuntu.com/security/notices/USN-4114-1
- https://ubuntu.com/security/notices/USN-4115-1
- https://ubuntu.com/security/notices/USN-4116-1
- https://ubuntu.com/security/notices/USN-4117-1
- https://ubuntu.com/security/notices/USN-4118-1
- https://www.cve.org/CVERecord?id=CVE-2019-10638