UBUNTU-CVE-2021-3759
A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. 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
6 explicit affected versions
7 explicit affected versions
72 explicit affected versions
33 explicit affected versions
52 explicit affected versions
25 explicit affected versions
35 explicit affected versions
84 explicit affected versions
4 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
6 explicit affected versions
1 explicit affected versions
7 explicit affected versions
4 explicit affected versions
36 explicit affected versions
44 explicit affected versions
6 explicit affected versions
36 explicit affected versions
27 explicit affected versions
10 explicit affected versions
20 explicit affected versions
50 explicit affected versions
1 explicit affected versions
20 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
66 explicit affected versions
1 explicit affected versions
38 explicit affected versions
33 explicit affected versions
10 explicit affected versions
51 explicit affected versions
11 explicit affected versions
7 explicit affected versions
74 explicit affected versions
6 explicit affected versions
36 explicit affected versions
70 explicit affected versions
32 explicit affected versions
1 explicit affected versions
4 explicit affected versions
15 explicit affected versions
28 explicit affected versions
1 explicit affected versions
1 explicit affected versions
32 explicit affected versions
5 explicit affected versions
26 explicit affected versions
1 explicit affected versions
26 explicit affected versions
7 explicit affected versions
1 explicit affected versions
28 explicit affected versions
10 explicit affected versions
24 explicit affected versions
44 explicit affected versions
16 explicit affected versions
5 explicit affected versions
20 explicit affected versions
38 explicit affected versions
9 explicit affected versions
26 explicit affected versions
7 explicit affected versions
82 explicit affected versions
59 explicit affected versions
4 explicit affected versions
16 explicit affected versions
50 explicit affected versions
26 explicit affected versions
43 explicit affected versions
1 explicit affected versions
99 explicit affected versions
12 explicit affected versions
28 explicit affected versions
4 explicit affected versions
15 explicit affected versions
1 explicit affected versions
6 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.
05 / REFERENCES
Further evidence
- https://lore.kernel.org/linux-mm/[email protected]/
- https://ubuntu.com/security/CVE-2021-3759
- https://ubuntu.com/security/notices/USN-5115-1
- https://ubuntu.com/security/notices/USN-5117-1
- https://ubuntu.com/security/notices/USN-5120-1
- https://ubuntu.com/security/notices/USN-5135-1
- https://ubuntu.com/security/notices/USN-5136-1
- https://ubuntu.com/security/notices/USN-5137-1
- https://ubuntu.com/security/notices/USN-5137-2
- https://www.cve.org/CVERecord?id=CVE-2021-3759