UBUNTU-CVE-2023-32257
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_SESSION_SETUP and SMB2_LOGOFF 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
23 explicit affected versions
35 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
44 explicit affected versions
30 explicit affected versions
41 explicit affected versions
30 explicit affected versions
37 explicit affected versions
7 explicit affected versions
38 explicit affected versions
35 explicit affected versions
1 explicit affected versions
12 explicit affected versions
18 explicit affected versions
24 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
3 explicit affected versions
7 explicit affected versions
12 explicit affected versions
28 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
7 explicit affected versions
37 explicit affected versions
17 explicit affected versions
26 explicit affected versions
13 explicit affected versions
3 explicit affected versions
29 explicit affected versions
13 explicit affected versions
41 explicit affected versions
40 explicit affected versions
2 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
5 explicit affected versions
30 explicit affected versions
22 explicit affected versions
38 explicit affected versions
10 explicit affected versions
26 explicit affected versions
1 explicit affected versions
16 explicit affected versions
41 explicit affected versions
31 explicit affected versions
3 explicit affected versions
2 explicit affected versions
51 explicit affected versions
12 explicit affected versions
27 explicit affected versions
8 explicit affected versions
14 explicit affected versions
8 explicit affected versions
2 explicit affected versions
5 explicit affected versions
8 explicit affected versions
3 explicit affected versions
13 explicit affected versions
7 explicit affected versions
33 explicit affected versions
10 explicit affected versions
10 explicit affected versions
12 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
27 explicit affected versions
37 explicit affected versions
38 explicit affected versions
31 explicit affected versions
9 explicit affected versions
31 explicit affected versions
11 explicit affected versions
38 explicit affected versions
2 explicit affected versions
12 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
36 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
6 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_SESSION_SETUP and SMB2_LOGOFF 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://access.redhat.com/security/cve/CVE-2023-32257
- https://ubuntu.com/security/CVE-2023-32257
- https://ubuntu.com/security/notices/USN-6338-1
- https://ubuntu.com/security/notices/USN-6338-2
- https://ubuntu.com/security/notices/USN-6344-1
- https://ubuntu.com/security/notices/USN-6626-1
- https://ubuntu.com/security/notices/USN-6626-2
- https://ubuntu.com/security/notices/USN-6626-3
- https://ubuntu.com/security/notices/USN-6628-1
- https://ubuntu.com/security/notices/USN-6628-2
- https://www.cve.org/CVERecord?id=CVE-2023-32257
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-20596/