UBUNTU-CVE-2023-21400
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
02 / AFFECTED SOFTWARE
Affected packages
90 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
18 explicit affected versions
37 explicit affected versions
14 explicit affected versions
56 explicit affected versions
10 explicit affected versions
38 explicit affected versions
22 explicit affected versions
9 explicit affected versions
8 explicit affected versions
14 explicit affected versions
22 explicit affected versions
11 explicit affected versions
91 explicit affected versions
4 explicit affected versions
78 explicit affected versions
1 explicit affected versions
29 explicit affected versions
3 explicit affected versions
62 explicit affected versions
4 explicit affected versions
1 explicit affected versions
27 explicit affected versions
43 explicit affected versions
11 explicit affected versions
18 explicit affected versions
26 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
19 explicit affected versions
6 explicit affected versions
35 explicit affected versions
21 explicit affected versions
71 explicit affected versions
32 explicit affected versions
21 explicit affected versions
10 explicit affected versions
28 explicit affected versions
7 explicit affected versions
29 explicit affected versions
98 explicit affected versions
13 explicit affected versions
35 explicit affected versions
7 explicit affected versions
18 explicit affected versions
15 explicit affected versions
100 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
55 explicit affected versions
7 explicit affected versions
12 explicit affected versions
19 explicit affected versions
12 explicit affected versions
14 explicit affected versions
7 explicit affected versions
87 explicit affected versions
12 explicit affected versions
103 explicit affected versions
111 explicit affected versions
12 explicit affected versions
98 explicit affected versions
2 explicit affected versions
10 explicit affected versions
37 explicit affected versions
13 explicit affected versions
10 explicit affected versions
9 explicit affected versions
1 explicit affected versions
37 explicit affected versions
26 explicit affected versions
13 explicit affected versions
2 explicit affected versions
29 explicit affected versions
91 explicit affected versions
13 explicit affected versions
32 explicit affected versions
86 explicit affected versions
31 explicit affected versions
103 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
101 explicit affected versions
21 explicit affected versions
13 explicit affected versions
29 explicit affected versions
10 explicit affected versions
26 explicit affected versions
37 explicit affected versions
13 explicit affected versions
61 explicit affected versions
16 explicit affected versions
32 explicit affected versions
22 explicit affected versions
3 explicit affected versions
1 explicit affected versions
68 explicit affected versions
51 explicit affected versions
12 explicit affected versions
21 explicit affected versions
27 explicit affected versions
6 explicit affected versions
1 explicit affected versions
8 explicit affected versions
5 explicit affected versions
8 explicit affected versions
1 explicit affected versions
13 explicit affected versions
90 explicit affected versions
13 explicit affected versions
54 explicit affected versions
7 explicit affected versions
24 explicit affected versions
10 explicit affected versions
6 explicit affected versions
12 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
05 / REFERENCES
Further evidence
- https://source.android.com/security/bulletin/pixel/2023-07-01
- https://twitter.com/VAR10CK/status/1683303642173153280
- https://ubuntu.com/security/CVE-2023-21400
- https://ubuntu.com/security/notices/USN-6315-1
- https://ubuntu.com/security/notices/USN-6325-1
- https://ubuntu.com/security/notices/USN-6330-1
- https://ubuntu.com/security/notices/USN-6332-1
- https://ubuntu.com/security/notices/USN-6348-1
- https://ubuntu.com/security/notices/USN-7234-1
- https://ubuntu.com/security/notices/USN-7234-2
- https://ubuntu.com/security/notices/USN-7234-3
- https://ubuntu.com/security/notices/USN-7234-4
- https://ubuntu.com/security/notices/USN-7234-5
- https://ubuntu.com/security/notices/USN-7295-1
- https://ubuntu.com/security/notices/USN-7413-1
- https://www.cve.org/CVERecord?id=CVE-2023-21400
- https://www.openwall.com/lists/oss-security/2023/07/14/2
- https://www.openwall.com/lists/oss-security/2023/07/25/9
- https://yanglingxi1993.github.io/dirty_pagetable/dirty_pagetable.html