UBUNTU-CVE-2016-6213
fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.
02 / AFFECTED SOFTWARE
Affected packages
102 explicit affected versions
37 explicit affected versions
18 explicit affected versions
38 explicit affected versions
17 explicit affected versions
13 explicit affected versions
44 explicit affected versions
38 explicit affected versions
43 explicit affected versions
10 explicit affected versions
26 explicit affected versions
51 explicit affected versions
78 explicit affected versions
6 explicit affected versions
12 explicit affected versions
1 explicit affected versions
1 explicit affected versions
23 explicit affected versions
7 explicit affected versions
7 explicit affected versions
8 explicit affected versions
7 explicit affected versions
1 explicit affected versions
1 explicit affected versions
24 explicit affected versions
61 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.
05 / REFERENCES
Further evidence
- http://www.openwall.com/lists/oss-security/2016/07/13/6
- https://ubuntu.com/security/CVE-2016-6213
- https://ubuntu.com/security/notices/USN-3160-1
- https://ubuntu.com/security/notices/USN-3160-2
- https://ubuntu.com/security/notices/USN-3161-1
- https://ubuntu.com/security/notices/USN-3161-2
- https://ubuntu.com/security/notices/USN-3161-3
- https://ubuntu.com/security/notices/USN-3161-4
- https://ubuntu.com/security/notices/USN-3162-1
- https://ubuntu.com/security/notices/USN-3162-2
- https://www.cve.org/CVERecord?id=CVE-2016-6213