oss-sec mailing list archives

Re: cve request: local DoS by overflowing kernel mount table using shared bind mount

From: cve-assign () mitre org
Date: Wed, 13 Jul 2016 12:59:40 -0400 (EDT)

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It was reported that the mount table expands by a power-of-two
with each bind mount command.

If the system is configured in the way that a non-root user
allows bind mount even if with limit number of bind mount
allowed, a non-root user could cause a local DoS by quickly
overflow the mount table.

it will cause a deadlock for the whole system,

form of unlimited memory consumption that is causing the problem


Use CVE-2016-6213.

- -- 
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
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Current thread:

cve request: local DoS by overflowing kernel mount table using shared bind mount CAI Qian (Jul 13)
- Re: cve request: local DoS by overflowing kernel mount table using shared bind mount cve-assign (Jul 13)
  - Re: Re: cve request: local DoS by overflowing kernel mount table using shared bind mount Greg KH (Jul 13)
    - Re: Re: cve request: local DoS by overflowing kernel mount table using shared bind mount CAI Qian (Jul 14)
    - Re: Re: cve request: local DoS by overflowing kernel mount table using shared bind mount Jessica Frazelle (Jul 14)
    - Re: Re: cve request: local DoS by overflowing kernel mount table using shared bind mount CAI Qian (Jul 15)
    - Re: cve request: local DoS by overflowing kernel mount table using shared bind mount Jesse Hertz (Jul 15)