UBUNTU-CVE-2023-3439
A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
02 / AFFECTED SOFTWARE
Affected packages
16 explicit affected versions
24 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
33 explicit affected versions
19 explicit affected versions
30 explicit affected versions
19 explicit affected versions
26 explicit affected versions
7 explicit affected versions
27 explicit affected versions
35 explicit affected versions
6 explicit affected versions
16 explicit affected versions
13 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
17 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
7 explicit affected versions
26 explicit affected versions
13 explicit affected versions
2 explicit affected versions
29 explicit affected versions
13 explicit affected versions
30 explicit affected versions
29 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
19 explicit affected versions
11 explicit affected versions
27 explicit affected versions
3 explicit affected versions
30 explicit affected versions
20 explicit affected versions
3 explicit affected versions
12 explicit affected versions
19 explicit affected versions
5 explicit affected versions
5 explicit affected versions
13 explicit affected versions
22 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
16 explicit affected versions
37 explicit affected versions
38 explicit affected versions
20 explicit affected versions
9 explicit affected versions
20 explicit affected versions
27 explicit affected versions
4 explicit affected versions
1 explicit affected versions
25 explicit affected versions
43 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 MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/b561275d633bcd8e0e8055ab86f1a13df75a0269
- https://github.com/torvalds/linux/commit/b561275d633bcd8e0e8055ab86f1a13df75a0269
- https://ubuntu.com/security/CVE-2023-3439
- https://ubuntu.com/security/notices/USN-6246-1
- https://ubuntu.com/security/notices/USN-6255-1
- https://www.cve.org/CVERecord?id=CVE-2023-3439
- https://www.openwall.com/lists/oss-security/2023/07/02/1