UBUNTU-CVE-2023-0386
A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.
02 / AFFECTED SOFTWARE
Affected packages
29 explicit affected versions
14 explicit affected versions
27 explicit affected versions
14 explicit affected versions
1 explicit affected versions
10 explicit affected versions
21 explicit affected versions
7 explicit affected versions
26 explicit affected versions
13 explicit affected versions
37 explicit affected versions
10 explicit affected versions
13 explicit affected versions
37 explicit affected versions
4 explicit affected versions
18 explicit affected versions
23 explicit affected versions
7 explicit affected versions
13 explicit affected versions
10 explicit affected versions
33 explicit affected versions
16 explicit affected versions
24 explicit affected versions
12 explicit affected versions
19 explicit affected versions
38 explicit affected versions
13 explicit affected versions
3 explicit affected versions
10 explicit affected versions
13 explicit affected versions
10 explicit affected versions
1 explicit affected versions
21 explicit affected versions
6 explicit affected versions
13 explicit affected versions
12 explicit affected versions
24 explicit affected versions
21 explicit affected versions
24 explicit affected versions
9 explicit affected versions
23 explicit affected versions
5 explicit affected versions
6 explicit affected versions
16 explicit affected versions
23 explicit affected versions
19 explicit affected versions
12 explicit affected versions
44 explicit affected versions
22 explicit affected versions
14 explicit affected versions
4 explicit affected versions
4 explicit affected versions
9 explicit affected versions
12 explicit affected versions
11 explicit affected versions
5 explicit affected versions
2 explicit affected versions
13 explicit affected versions
7 explicit affected versions
13 explicit affected versions
3 explicit affected versions
16 explicit affected versions
43 explicit affected versions
9 explicit affected versions
8 explicit affected versions
3 explicit affected versions
21 explicit affected versions
35 explicit affected versions
12 explicit affected versions
6 explicit affected versions
12 explicit affected versions
50 explicit affected versions
13 explicit affected versions
12 explicit affected versions
12 explicit affected versions
12 explicit affected versions
7 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/4f11ada10d0ad3fd53e2bd67806351de63a4f9c3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a
- https://ubuntu.com/security/CVE-2023-0386
- https://ubuntu.com/security/notices/USN-6025-1
- https://ubuntu.com/security/notices/USN-6040-1
- https://ubuntu.com/security/notices/USN-6043-1
- https://ubuntu.com/security/notices/USN-6057-1
- https://ubuntu.com/security/notices/USN-6071-1
- https://ubuntu.com/security/notices/USN-6072-1
- https://ubuntu.com/security/notices/USN-6134-1
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- https://www.cve.org/CVERecord?id=CVE-2023-0386