UBUNTU-CVE-2023-3161
A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.
02 / AFFECTED SOFTWARE
Affected packages
20 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
29 explicit affected versions
15 explicit affected versions
37 explicit affected versions
12 explicit affected versions
26 explicit affected versions
15 explicit affected versions
21 explicit affected versions
191 explicit affected versions
7 explicit affected versions
100 explicit affected versions
23 explicit affected versions
63 explicit affected versions
79 explicit affected versions
49 explicit affected versions
35 explicit affected versions
12 explicit affected versions
113 explicit affected versions
10 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
87 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
20 explicit affected versions
7 explicit affected versions
12 explicit affected versions
13 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
68 explicit affected versions
27 explicit affected versions
76 explicit affected versions
12 explicit affected versions
65 explicit affected versions
54 explicit affected versions
10 explicit affected versions
153 explicit affected versions
37 explicit affected versions
86 explicit affected versions
4 explicit affected versions
1 explicit affected versions
10 explicit affected versions
26 explicit affected versions
13 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
93 explicit affected versions
26 explicit affected versions
1 explicit affected versions
25 explicit affected versions
68 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
77 explicit affected versions
11 explicit affected versions
12 explicit affected versions
100 explicit affected versions
7 explicit affected versions
67 explicit affected versions
2 explicit affected versions
15 explicit affected versions
7 explicit affected versions
23 explicit affected versions
65 explicit affected versions
5 explicit affected versions
26 explicit affected versions
4 explicit affected versions
16 explicit affected versions
26 explicit affected versions
16 explicit affected versions
3 explicit affected versions
1 explicit affected versions
34 explicit affected versions
44 explicit affected versions
53 explicit affected versions
12 explicit affected versions
14 explicit affected versions
3 explicit affected versions
3 explicit affected versions
1 explicit affected versions
1 explicit affected versions
58 explicit affected versions
8 explicit affected versions
5 explicit affected versions
57 explicit affected versions
8 explicit affected versions
1 explicit affected versions
56 explicit affected versions
13 explicit affected versions
22 explicit affected versions
7 explicit affected versions
55 explicit affected versions
18 explicit affected versions
10 explicit affected versions
3 explicit affected versions
12 explicit affected versions
52 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
12 explicit affected versions
37 explicit affected versions
38 explicit affected versions
16 explicit affected versions
9 explicit affected versions
16 explicit affected versions
6 explicit affected versions
130 explicit affected versions
23 explicit affected versions
56 explicit affected versions
64 explicit affected versions
30 explicit affected versions
104 explicit affected versions
83 explicit affected versions
4 explicit affected versions
21 explicit affected versions
76 explicit affected versions
55 explicit affected versions
43 explicit affected versions
22 explicit affected versions
109 explicit affected versions
127 explicit affected versions
10 explicit affected versions
8 explicit affected versions
56 explicit affected versions
4 explicit affected versions
45 explicit affected versions
1 explicit affected versions
30 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/2b09d5d364986f724f17001ccfe4126b9b43a0be
- https://github.com/torvalds/linux/commit/2b09d5d364986f724f17001ccfe4126b9b43a0be
- https://ubuntu.com/security/CVE-2023-3161
- https://ubuntu.com/security/notices/USN-6222-1
- https://ubuntu.com/security/notices/USN-6254-1
- https://ubuntu.com/security/notices/USN-6256-1
- https://www.cve.org/CVERecord?id=CVE-2023-3161