UBUNTU-CVE-2021-4155
A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
57 explicit affected versions
13 explicit affected versions
191 explicit affected versions
76 explicit affected versions
39 explicit affected versions
56 explicit affected versions
29 explicit affected versions
9 explicit affected versions
88 explicit affected versions
3 explicit affected versions
4 explicit affected versions
23 explicit affected versions
82 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
6 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
1 explicit affected versions
3 explicit affected versions
12 explicit affected versions
43 explicit affected versions
3 explicit affected versions
51 explicit affected versions
12 explicit affected versions
42 explicit affected versions
31 explicit affected versions
10 explicit affected versions
148 explicit affected versions
26 explicit affected versions
81 explicit affected versions
54 explicit affected versions
1 explicit affected versions
26 explicit affected versions
3 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
70 explicit affected versions
1 explicit affected versions
44 explicit affected versions
33 explicit affected versions
10 explicit affected versions
55 explicit affected versions
11 explicit affected versions
12 explicit affected versions
78 explicit affected versions
7 explicit affected versions
42 explicit affected versions
2 explicit affected versions
74 explicit affected versions
39 explicit affected versions
1 explicit affected versions
10 explicit affected versions
21 explicit affected versions
32 explicit affected versions
3 explicit affected versions
1 explicit affected versions
1 explicit affected versions
36 explicit affected versions
5 explicit affected versions
33 explicit affected versions
1 explicit affected versions
32 explicit affected versions
13 explicit affected versions
1 explicit affected versions
32 explicit affected versions
10 explicit affected versions
3 explicit affected versions
29 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
26 explicit affected versions
38 explicit affected versions
9 explicit affected versions
125 explicit affected versions
32 explicit affected versions
60 explicit affected versions
12 explicit affected versions
86 explicit affected versions
63 explicit affected versions
4 explicit affected versions
20 explicit affected versions
54 explicit affected versions
32 explicit affected versions
43 explicit affected versions
1 explicit affected versions
104 explicit affected versions
103 explicit affected versions
33 explicit affected versions
4 explicit affected versions
21 explicit affected versions
1 explicit affected versions
10 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/983d8e60f50806f90534cc5373d0ce867e5aaf79
- https://ubuntu.com/security/CVE-2021-4155
- https://ubuntu.com/security/notices/USN-5278-1
- https://ubuntu.com/security/notices/USN-5294-1
- https://ubuntu.com/security/notices/USN-5294-2
- https://ubuntu.com/security/notices/USN-5295-1
- https://ubuntu.com/security/notices/USN-5295-2
- https://ubuntu.com/security/notices/USN-5297-1
- https://ubuntu.com/security/notices/USN-5298-1
- https://ubuntu.com/security/notices/USN-5362-1
- https://ubuntu.com/security/notices/USN-5884-1
- https://ubuntu.com/security/notices/USN-5926-1
- https://www.cve.org/CVERecord?id=CVE-2021-4155
- https://www.openwall.com/lists/oss-security/2022/01/10/1