CVE-2014-7970

Public Exploit

Description

The pivot_root implementation in fs/namespace.c in the Linux kernel through 3.17 does not properly interact with certain locations of a chroot directory, which allows local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.01%
Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html mailing list third party advisory vendor advisory
http://www.securityfocus.com/bid/70319 vdb entry third party advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d0826019e529f21c84687521d03f60cd241ca7d mailing list patch vendor advisory
http://www.ubuntu.com/usn/USN-2419-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2514-1 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1151095 issue tracking third party advisory patch
http://secunia.com/advisories/60174 third party advisory broken link
http://www.openwall.com/lists/oss-security/2014/10/08/21 mailing list third party advisory patch
http://www.ubuntu.com/usn/USN-2420-1 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:2077 third party advisory vendor advisory
http://www.spinics.net/lists/linux-fsdevel/msg79153.html mailing list patch exploit third party advisory
https://access.redhat.com/errata/RHSA-2017:1842 third party advisory vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/96921 vdb entry third party advisory
http://www.ubuntu.com/usn/USN-2513-1 third party advisory vendor advisory
http://secunia.com/advisories/61142 third party advisory broken link
http://www.securitytracker.com/id/1030991 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2014-7970?
CVE-2014-7970 has been scored as a medium severity vulnerability.
How to fix CVE-2014-7970?
To fix CVE-2014-7970, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-7970 being actively exploited in the wild?
It is possible that CVE-2014-7970 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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