UBUNTU-CVE-2020-25669
A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.
02 / AFFECTED SOFTWARE
Affected packages
88 explicit affected versions
50 explicit affected versions
6 explicit affected versions
6 explicit affected versions
57 explicit affected versions
191 explicit affected versions
57 explicit affected versions
20 explicit affected versions
38 explicit affected versions
11 explicit affected versions
68 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
22 explicit affected versions
30 explicit affected versions
56 explicit affected versions
21 explicit affected versions
13 explicit affected versions
10 explicit affected versions
36 explicit affected versions
7 explicit affected versions
55 explicit affected versions
35 explicit affected versions
1 explicit affected versions
1 explicit affected versions
25 explicit affected versions
13 explicit affected versions
52 explicit affected versions
1 explicit affected versions
24 explicit affected versions
32 explicit affected versions
10 explicit affected versions
11 explicit affected versions
90 explicit affected versions
22 explicit affected versions
2 explicit affected versions
55 explicit affected versions
18 explicit affected versions
60 explicit affected versions
1 explicit affected versions
121 explicit affected versions
2 explicit affected versions
14 explicit affected versions
68 explicit affected versions
1 explicit affected versions
17 explicit affected versions
12 explicit affected versions
1 explicit affected versions
12 explicit affected versions
1 explicit affected versions
14 explicit affected versions
3 explicit affected versions
77 explicit affected versions
11 explicit affected versions
37 explicit affected versions
44 explicit affected versions
16 explicit affected versions
7 explicit affected versions
38 explicit affected versions
9 explicit affected versions
99 explicit affected versions
12 explicit affected versions
84 explicit affected versions
34 explicit affected versions
45 explicit affected versions
6 explicit affected versions
11 explicit affected versions
43 explicit affected versions
1 explicit affected versions
12 explicit affected versions
15 explicit affected versions
4 explicit affected versions
2 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.
05 / REFERENCES
Further evidence
- https://ubuntu.com/security/CVE-2020-25669
- https://ubuntu.com/security/notices/USN-4708-1
- https://ubuntu.com/security/notices/USN-4709-1
- https://ubuntu.com/security/notices/USN-4749-1
- https://ubuntu.com/security/notices/USN-4750-1
- https://ubuntu.com/security/notices/USN-4751-1
- https://ubuntu.com/security/notices/USN-4912-1
- https://www.cve.org/CVERecord?id=CVE-2020-25669
- https://www.openwall.com/lists/oss-security/2020/11/05/2