UBUNTU-CVE-2023-32254
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_TREE_DISCONNECT commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
02 / AFFECTED SOFTWARE
Affected packages
27 explicit affected versions
39 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
48 explicit affected versions
34 explicit affected versions
45 explicit affected versions
34 explicit affected versions
41 explicit affected versions
7 explicit affected versions
42 explicit affected versions
35 explicit affected versions
1 explicit affected versions
13 explicit affected versions
18 explicit affected versions
3 explicit affected versions
28 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
7 explicit affected versions
12 explicit affected versions
32 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
8 explicit affected versions
37 explicit affected versions
21 explicit affected versions
26 explicit affected versions
13 explicit affected versions
4 explicit affected versions
29 explicit affected versions
13 explicit affected versions
45 explicit affected versions
43 explicit affected versions
5 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
34 explicit affected versions
26 explicit affected versions
42 explicit affected versions
10 explicit affected versions
26 explicit affected versions
1 explicit affected versions
16 explicit affected versions
45 explicit affected versions
35 explicit affected versions
3 explicit affected versions
2 explicit affected versions
12 explicit affected versions
32 explicit affected versions
8 explicit affected versions
18 explicit affected versions
8 explicit affected versions
6 explicit affected versions
5 explicit affected versions
8 explicit affected versions
13 explicit affected versions
7 explicit affected versions
37 explicit affected versions
10 explicit affected versions
11 explicit affected versions
12 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
31 explicit affected versions
37 explicit affected versions
38 explicit affected versions
35 explicit affected versions
9 explicit affected versions
34 explicit affected versions
11 explicit affected versions
42 explicit affected versions
2 explicit affected versions
16 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
40 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 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's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_TREE_DISCONNECT commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/30210947a343b6b3ca13adc9bfc88e1543e16dd5
- https://ubuntu.com/security/CVE-2023-32254
- https://ubuntu.com/security/notices/USN-6173-1
- https://ubuntu.com/security/notices/USN-6283-1
- https://ubuntu.com/security/notices/USN-6725-1
- https://ubuntu.com/security/notices/USN-6725-2
- https://www.cve.org/CVERecord?id=CVE-2023-32254
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-20592/