UBUNTU-CVE-2020-13974
An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case.
02 / AFFECTED SOFTWARE
Affected packages
81 explicit affected versions
42 explicit affected versions
6 explicit affected versions
23 explicit affected versions
6 explicit affected versions
57 explicit affected versions
191 explicit affected versions
47 explicit affected versions
12 explicit affected versions
28 explicit affected versions
2 explicit affected versions
54 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
7 explicit affected versions
5 explicit affected versions
1 explicit affected versions
12 explicit affected versions
16 explicit affected versions
49 explicit affected versions
18 explicit affected versions
12 explicit affected versions
4 explicit affected versions
10 explicit affected versions
27 explicit affected versions
48 explicit affected versions
26 explicit affected versions
1 explicit affected versions
6 explicit affected versions
12 explicit affected versions
9 explicit affected versions
44 explicit affected versions
1 explicit affected versions
14 explicit affected versions
23 explicit affected versions
23 explicit affected versions
6 explicit affected versions
11 explicit affected versions
83 explicit affected versions
12 explicit affected versions
2 explicit affected versions
47 explicit affected versions
4 explicit affected versions
51 explicit affected versions
1 explicit affected versions
112 explicit affected versions
51 explicit affected versions
5 explicit affected versions
60 explicit affected versions
1 explicit affected versions
6 explicit affected versions
2 explicit affected versions
1 explicit affected versions
2 explicit affected versions
1 explicit affected versions
5 explicit affected versions
70 explicit affected versions
2 explicit affected versions
29 explicit affected versions
44 explicit affected versions
14 explicit affected versions
26 explicit affected versions
9 explicit affected versions
38 explicit affected versions
8 explicit affected versions
90 explicit affected versions
2 explicit affected versions
73 explicit affected versions
25 explicit affected versions
37 explicit affected versions
2 explicit affected versions
31 explicit affected versions
1 explicit affected versions
12 explicit affected versions
6 explicit affected versions
4 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/b86dab054059b970111b5516ae548efaae5b3aae
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae
- https://lkml.org/lkml/2020/3/22/482
- https://lore.kernel.org/lkml/CAEAjams79+V8bxpcp3UAsU1AnJ+gx2y+ZqhDhjJCpZn2oeZA4Q@mail.gmail.com/
- https://ubuntu.com/security/CVE-2020-13974
- https://ubuntu.com/security/notices/USN-4427-1
- https://ubuntu.com/security/notices/USN-4439-1
- https://ubuntu.com/security/notices/USN-4440-1
- https://ubuntu.com/security/notices/USN-4483-1
- https://ubuntu.com/security/notices/USN-4485-1
- https://www.cve.org/CVERecord?id=CVE-2020-13974