UBUNTU-CVE-2021-3506
An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
6 explicit affected versions
57 explicit affected versions
1 explicit affected versions
191 explicit affected versions
78 explicit affected versions
27 explicit affected versions
58 explicit affected versions
31 explicit affected versions
90 explicit affected versions
2 explicit affected versions
23 explicit affected versions
71 explicit affected versions
1 explicit affected versions
1 explicit affected versions
20 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
29 explicit affected versions
37 explicit affected versions
29 explicit affected versions
33 explicit affected versions
10 explicit affected versions
137 explicit affected versions
14 explicit affected versions
70 explicit affected versions
56 explicit affected versions
1 explicit affected versions
13 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
72 explicit affected versions
1 explicit affected versions
32 explicit affected versions
33 explicit affected versions
10 explicit affected versions
57 explicit affected versions
11 explicit affected versions
80 explicit affected versions
2 explicit affected versions
29 explicit affected versions
2 explicit affected versions
76 explicit affected versions
25 explicit affected versions
1 explicit affected versions
9 explicit affected versions
34 explicit affected versions
1 explicit affected versions
1 explicit affected versions
38 explicit affected versions
3 explicit affected versions
19 explicit affected versions
1 explicit affected versions
20 explicit affected versions
1 explicit affected versions
34 explicit affected versions
10 explicit affected versions
18 explicit affected versions
44 explicit affected versions
16 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
114 explicit affected versions
19 explicit affected versions
49 explicit affected versions
3 explicit affected versions
88 explicit affected versions
65 explicit affected versions
2 explicit affected versions
22 explicit affected versions
56 explicit affected versions
19 explicit affected versions
43 explicit affected versions
1 explicit affected versions
92 explicit affected versions
105 explicit affected versions
12 explicit affected versions
22 explicit affected versions
4 explicit affected versions
9 explicit affected versions
1 explicit affected versions
12 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
05 / REFERENCES
Further evidence
- https://bugzilla.redhat.com/show_bug.cgi?id=1944298
- https://lore.kernel.org/lkml/[email protected]/
- https://ubuntu.com/security/CVE-2021-3506
- https://ubuntu.com/security/notices/USN-4997-1
- https://ubuntu.com/security/notices/USN-4997-2
- https://ubuntu.com/security/notices/USN-5000-1
- https://ubuntu.com/security/notices/USN-5000-2
- https://ubuntu.com/security/notices/USN-5001-1
- https://ubuntu.com/security/notices/USN-5016-1
- https://ubuntu.com/security/notices/USN-5339-1
- https://ubuntu.com/security/notices/USN-5343-1
- https://www.cve.org/CVERecord?id=CVE-2021-3506
- https://www.mail-archive.com/[email protected]/msg2520013.html
- https://www.openwall.com/lists/oss-security/2021/03/28/2