Allocation of Resources Without Limits or Throttling Affecting perf package, versions <0:3.10.0-693.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CENTOS7-PERF-2084397
- published26 Jul 2021
- disclosed13 Jul 2016
Introduced: 13 Jul 2016
CVE-2016-6213 (opens in a new tab)How to fix?
Upgrade Centos:7 perf to version 0:3.10.0-693.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/91754
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498
- https://bugzilla.redhat.com/show_bug.cgi?id=1356471
- https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498
- https://access.redhat.com/security/cve/CVE-2016-6213
- http://www.openwall.com/lists/oss-security/2016/07/13/8
- https://access.redhat.com/errata/RHSA-2017:1842