UBUNTU-CVE-2020-14314
A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.
02 / AFFECTED SOFTWARE
Affected packages
85 explicit affected versions
45 explicit affected versions
6 explicit affected versions
6 explicit affected versions
191 explicit affected versions
50 explicit affected versions
15 explicit affected versions
31 explicit affected versions
5 explicit affected versions
57 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
1 explicit affected versions
7 explicit affected versions
8 explicit affected versions
1 explicit affected versions
15 explicit affected versions
19 explicit affected versions
53 explicit affected versions
15 explicit affected versions
7 explicit affected versions
10 explicit affected versions
30 explicit affected versions
1 explicit affected versions
52 explicit affected versions
29 explicit affected versions
1 explicit affected versions
1 explicit affected versions
22 explicit affected versions
13 explicit affected versions
47 explicit affected versions
1 explicit affected versions
17 explicit affected versions
26 explicit affected versions
10 explicit affected versions
11 explicit affected versions
87 explicit affected versions
15 explicit affected versions
2 explicit affected versions
50 explicit affected versions
7 explicit affected versions
54 explicit affected versions
1 explicit affected versions
116 explicit affected versions
8 explicit affected versions
63 explicit affected versions
1 explicit affected versions
9 explicit affected versions
5 explicit affected versions
1 explicit affected versions
5 explicit affected versions
1 explicit affected versions
8 explicit affected versions
74 explicit affected versions
5 explicit affected versions
32 explicit affected versions
44 explicit affected versions
16 explicit affected versions
1 explicit affected versions
38 explicit affected versions
9 explicit affected versions
94 explicit affected versions
5 explicit affected versions
76 explicit affected versions
29 explicit affected versions
40 explicit affected versions
5 explicit affected versions
43 explicit affected versions
1 explicit affected versions
12 explicit affected versions
9 explicit affected versions
4 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.
05 / REFERENCES
Further evidence
- https://bugzilla.redhat.com/show_bug.cgi?id=1853922
- https://lore.kernel.org/linux-ext4/[email protected]/T/#u
- https://ubuntu.com/security/CVE-2020-14314
- https://ubuntu.com/security/notices/USN-4576-1
- https://ubuntu.com/security/notices/USN-4578-1
- https://ubuntu.com/security/notices/USN-4579-1
- https://ubuntu.com/security/notices/USN-4752-1
- https://www.cve.org/CVERecord?id=CVE-2020-14314