UBUNTU-CVE-2023-2640
On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
83 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
19 explicit affected versions
10 explicit affected versions
6 explicit affected versions
93 explicit affected versions
78 explicit affected versions
78 explicit affected versions
81 explicit affected versions
72 explicit affected versions
10 explicit affected versions
85 explicit affected versions
7 explicit affected versions
80 explicit affected versions
13 explicit affected versions
35 explicit affected versions
45 explicit affected versions
43 explicit affected versions
18 explicit affected versions
37 explicit affected versions
64 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
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
11 explicit affected versions
12 explicit affected versions
14 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
39 explicit affected versions
16 explicit affected versions
10 explicit affected versions
37 explicit affected versions
13 explicit affected versions
11 explicit affected versions
60 explicit affected versions
26 explicit affected versions
13 explicit affected versions
32 explicit affected versions
29 explicit affected versions
13 explicit affected versions
90 explicit affected versions
85 explicit affected versions
48 explicit affected versions
33 explicit affected versions
23 explicit affected versions
54 explicit affected versions
10 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
1 explicit affected versions
70 explicit affected versions
86 explicit affected versions
9 explicit affected versions
26 explicit affected versions
62 explicit affected versions
11 explicit affected versions
3 explicit affected versions
14 explicit affected versions
84 explicit affected versions
12 explicit affected versions
67 explicit affected versions
73 explicit affected versions
12 explicit affected versions
59 explicit affected versions
7 explicit affected versions
50 explicit affected versions
5 explicit affected versions
1 explicit affected versions
13 explicit affected versions
13 explicit affected versions
10 explicit affected versions
12 explicit affected versions
9 explicit affected versions
32 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
45 explicit affected versions
37 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
10 explicit affected versions
86 explicit affected versions
1 explicit affected versions
4 explicit affected versions
75 explicit affected versions
84 explicit affected versions
74 explicit affected versions
74 explicit affected versions
13 explicit affected versions
43 explicit affected versions
9 explicit affected versions
3 explicit affected versions
4 explicit affected versions
11 explicit affected versions
1 explicit affected versions
74 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks.
05 / REFERENCES
Further evidence
- https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html
- https://ubuntu.com/security/CVE-2023-2640
- https://ubuntu.com/security/notices/USN-6248-1
- https://ubuntu.com/security/notices/USN-6250-1
- https://ubuntu.com/security/notices/USN-6260-1
- https://ubuntu.com/security/notices/USN-6285-1
- https://ubuntu.com/security/notices/USN-8255-1
- https://ubuntu.com/security/notices/USN-8255-2
- https://ubuntu.com/security/notices/USN-8255-3
- https://ubuntu.com/security/notices/USN-8275-1
- https://ubuntu.com/security/notices/USN-8297-1
- https://ubuntu.com/security/notices/USN-8439-1
- https://wiz.io/blog/ubuntu-overlayfs-vulnerability
- https://www.cve.org/CVERecord?id=CVE-2023-2640