CVE-2016-6213
Advisory lineage Upstream: 0 Downstream: 12
Modified
Published: 28 Dec 2016, 07:42
Last modified:06 Aug 2024, 01:22
Vulnerability Summary
Overall Risk (default)
low
19/100 CVSS Score
4.7 MEDIUM
v3.0 (nvd)
EPSS Score
0.04% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
28 Dec 2016, 07:42
Published
Vulnerability first disclosed
06 Aug 2024, 01:22
Last Modified
Vulnerability information updated
Description
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.
CVSS Metrics
- v3.0•MEDIUM•Score: 4.7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.7AV:L/AC:M/Au:N/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 0.04%• Percentile: 12%
Techniques & Countermeasures
- CWE-400•Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
Affected Systems
- linux•linux_kernel
≤ 4.8.15
References (7)
- http://www.openwall.com/lists/oss-security/2016/07/13/8
- https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498
- http://www.securityfocus.com/bid/91754
- https://bugzilla.redhat.com/show_bug.cgi?id=1356471
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:1842