UBUNTU-CVE-2023-32248
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
02 / AFFECTED SOFTWARE
Affected packages
17 explicit affected versions
25 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
34 explicit affected versions
20 explicit affected versions
32 explicit affected versions
20 explicit affected versions
27 explicit affected versions
7 explicit affected versions
28 explicit affected versions
35 explicit affected versions
6 explicit affected versions
17 explicit affected versions
14 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
18 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
1 explicit affected versions
37 explicit affected versions
8 explicit affected versions
26 explicit affected versions
13 explicit affected versions
2 explicit affected versions
29 explicit affected versions
13 explicit affected versions
31 explicit affected versions
30 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
20 explicit affected versions
12 explicit affected versions
28 explicit affected versions
10 explicit affected versions
26 explicit affected versions
16 explicit affected versions
31 explicit affected versions
21 explicit affected versions
3 explicit affected versions
51 explicit affected versions
12 explicit affected versions
20 explicit affected versions
8 explicit affected versions
6 explicit affected versions
8 explicit affected versions
5 explicit affected versions
8 explicit affected versions
13 explicit affected versions
7 explicit affected versions
24 explicit affected versions
10 explicit affected versions
5 explicit affected versions
12 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
17 explicit affected versions
37 explicit affected versions
38 explicit affected versions
21 explicit affected versions
9 explicit affected versions
21 explicit affected versions
11 explicit affected versions
28 explicit affected versions
2 explicit affected versions
3 explicit affected versions
4 explicit affected versions
1 explicit affected versions
26 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 handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/3ac00a2ab69b34189942afa9e862d5170cdcb018
- https://ubuntu.com/security/CVE-2023-32248
- https://ubuntu.com/security/notices/USN-6283-1
- https://ubuntu.com/security/notices/USN-6300-1
- https://ubuntu.com/security/notices/USN-6311-1
- https://ubuntu.com/security/notices/USN-6332-1
- https://ubuntu.com/security/notices/USN-6347-1
- https://www.cve.org/CVERecord?id=CVE-2023-32248
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-20479/